E.G. Try Book or 2021 for a year (or maybe just an author / topic / keyword).
Agazarian, Y.M. (1969). The agency as a change agent. In A.H. Goldberg (Ed.), Blindness research: The expanding frontiers. University Park, PA and London, UK: Penn State Press.
Agazarian, Y.M. (1982). Role as a bridge construct in understanding the relationship between the individual and the group. In M. Pines & L. Rafaelson (Eds.), The individual and the group, boundaries and interrelations, Vol. I, Theory (pp. 181-192). New York, NY: Plenum Press.
Agazarian, Y.M. (1983). Some advantages of applying multi-dimensional thinking to the teaching, practice and outcomes of group psychotherapy. International Journal of Group Psychotherapy, 33(2), 243-247. doi: 10.1080/00207284.1983.11490871
Agazarian, Y.M. (1983). Theory of the invisible group applied to individual and group-as-a-whole interpretations. GROUP: The Journal of the Eastern Group Psychotherapy Society, 7(2), 27-37. doi: jstor.org/stable/41718187
Agazarian, Y.M. (1986). Application of Lewin's life space concept to the individual and group-as-a-whole systems in group psychotherapy. In E. Stivers & S. Wheelan (Eds.), The Lewin legacy: Field theory in current practice (pp. 101-112). New York, NY: Springer-Verlag.
Agazarian, Y.M. (1988, September). Application of a modified force field analysis to the diagnosis of implicit group goals. Paper presented at the Third International Kurt Lewin Conference of the Society for the Advancement of Field Theory, Philadelphia, PA.
Agazarian, Y.M. (1989). Group-as-a-whole systems theory and practice. GROUP: The Journal of the Eastern Group Psychotherapy Society, 13(3-4), 131-154. doi: jstor.org/stable/41718522
Agazarian, Y.M. (1989). The invisible group: An integrational theory of group-as-a-whole, The 12th Annual Foulkes Memorial Lecture. Group Analysis: The Journal of the Group Analytic Society, 22(4), 74-96. doi: 10.1177/0533316489224001
Agazarian, Y.M. (1991). Systems theory and group psychotherapy: From there-and-then to here-and-now. The International Forum of Group Psychotherapy, 1(3).
Agazarian, Y.M. (1992). Friends Series I. Functional Subgrouping.
Agazarian, Y.M. (1997). Systems-centered therapy for groups. New York, NY: Guilford. Re-printed in paperback (2004). London, UK: Karnac Books.
Agazarian, Y.M. (2006). Systems-centered practice: Selected papers on group psychotherapy. London, UK: Karnac Books.
Agazarian, Y.M. (2014). Patrick de Maré. Group Analysis, 47(4), 473-480. doi: 10.1177/0533316414557224
Agazarian, Y.M., & Gantt, S.P. (2000). Autobiography of a theory: Developing a theory of living human systems and its systems-centered practice. London, UK: Jessica Kingsley.
Agazarian, Y.M., Gantt, S.P., & Carter, F.B. (2021). Systems-centered training: An illustrated guide for applying a theory of living human systems. New York, NY: Routledge.
Badenoch, B. (2017). The heart of trauma: Healing the embodied brain in the context of relationships (Norton series on interpersonal neurobiology). New York, NY: Norton.
Bateson, G. (1972). Steps to an ecology of mind. New York, NY: Ballantine Books.
Beck, A.P. (1981). A study of group phase development and emergent leadership. GROUP: The Journal of the Eastern Group Psychotherapy Society, 5 (4), 48-54.
Beck, A.P., & Lewis, C.M. (Eds.) (2000). The process of group psychotherapy: Systems for analyzing change. Washington, D.C.: American Psychological Association.
Bennis, W.G., & Shepard, H.A. (1956). A theory of group development. Human Relations, 9(4), 415-437. doi: 10.1177/001872675600900403
Bertalanffy, L. von (1968). General system theory: Foundations, development, applications (Rev. ed. 1976). New York, NY: George Braziller.
Bertalanffy, L. von (1969). General systems (Rev. ed.). New York, NY: George Braziller.
Bion, W.R. (1961). Experiences in groups and other papers. London, UK: Tavistock.
Bowlby J. (1969). Attachment and loss, Vol. 1, Attachment. New York, NY: Basic Books.
Cartwright, D., & Zander, A. (1960). Group dynamics: Research and theory. 2nd ed. New York, NY: Elmsford, Row, Peterson.
Coleman, A.D., & Bexton, W.H. (Eds.) (1975). The group relations reader: Volume I. Washington, D.C.: A. K. Rice Institute.
Coleman, A.D., & Geller, M.H. (Eds.) (1985). The group relations reader: Volume II. Washington, D.C.: A. K. Rice Institute.
Davanloo, H. (1987). Clinical manifestations of superego pathology. International Journal of Short-Term Psychotherapy, 2(4), 225-254.
Davanloo, H. (1990). Unlocking the unconscious: Selected papers of Habib Davanloo. Oxford, UK: Wiley.
de Maré, P.B., Piper, R., & Thompson, S. (1991). Koinonia: From hate, through dialogue, to culture in the large group. London, UK: Karnac Books.
de Maré, P.B. (2014). Perspectives in group psychotherapy: A theoretical background. New York, NY: Routledge.
Donigian, J., & Hulse-Killacky, D. (Eds.). (1999). Critical incidents in group therapy. Belmont, CA: Wadsworth Publishing.
Durkin, H. (1972). Group therapy and general systems theory. In C.J. Sager & H. Singer Kaplan (Eds.), Progress in group and family therapy. New York, NY: Brunner/Mazel.
Durkin, J.E. (Ed.). (1981). Living groups: Group psychotherapy and general systems theory. New York, NY: Brunner/Mazel.
Festinger, L. (1957). A theory of cognitive dissonance. Evanston, IL: Row, Peterson.
Foulkes, S.H. & Anthony, E.J. (1957). Group psychotherapy: The psychoanalytic approach. London, UK: Karnac Books.
Foulkes, S.H. (1964). Therapeutic group analysis. London, UK: Allen and Unwin. Re-printed (1984). London, UK: Karnac Books.
Heard, B., & Lake, D. (1997). The challenge of attachment for caregiving. London, UK: Routledge, Chapman & Hall.
Hopper, E., & Weinberg, H. (Eds.) (2011). The social unconscious in persons, groups, and societies: Volume 1: Mainly theory. London, UK: Karnac Books.
Horwitz, L. (1983). Projective identification in diads and groups. International Journal of Group Psychotherapy, 33, 259-279.
Howard, A., & Scott, R.A. (1965). A proposed framework for the analysis of stress in the human organism. Journal of Applied Behavioral Science, 10, 141-160.
Hugg, T., Carson, N., & Lipgar, R. (Eds.). (1993). Changing group relations: Proceedings of the ninth scientific meeting of the A.K. Rice Institute. Juniper, FL: A.K.R.I. Institute.
Korzybski, A. (1994). Science and sanity: An introduction to non-Aristotelian systems and general semantics (5th ed.). Englewood, NJ: Institute of General Semantics.
Kreeger, L.C. (Ed.) (1975). The large group: Dynamics and therapy. London, UK: Constable.
Lenn, R. & Stefano, K. (Eds.) (2012). Small, large and median groups: The work of Patrick de Maré. London, UK: Karnac Books.
Lewin, K. (1951). Field theory in social science. New York, NY: Harper & Row.
McCluskey, U. (2005). To be met as a person: The dynamics of attachment in professional encounters. London, UK: Karnac Books.
McCluskey, U., & Hooper, C. (Eds.) (2000). Psychodynamic perspectives on abuse: The cost of fear. London, UK & Philadelphia, PA: Jessica Kingsley.
McCullough, L. (1991). Short term dynamic psychotherapy: A cross theoretical analysis of change mechanisms. In R.C. Curtis & G. Striker (Eds.), How people change. New York, NY: Plenum Press.
Miller, J.G. (1978). Living systems. New York, NY: McGraw-Hill.
Pines, M. (1983). The evolution of group analysis. London, UK: Routledge & Kegan Paul.
Pines, M. (1998). Circular reflections: Selected papers on group analysis and psychoanalysis. London, UK: Jessica Kingsley.
Pines, M. (Ed.) (2000). Bion and group psychotherapy. London, UK: Jessica Kingsley.
Pines, M., & Schermer, V. (Eds.) (1994). Ring of fire: Primitive object relations and affect in group psychotherapy. London, UK: Routledge, Chapman & Hall.
Roberts, J., & Pines, M. (Eds.). (1991). The practice of group analysis. London, UK: Tavistock/Routledge.
Rosenthal, H.G. (Ed.). (1997). Favorite counseling and therapy techniques. Washington, DC: Accelerated Development.
Rossi, E.L. (Ed.) (1980). The collected papers of Milton H. Erickson, Vols. I & IV. Irvington Publishers.
Ruesch, J., & Bateson, G. (1951). Communication: The social matrix of psychiatry. New York, NY: Norton.
Shannon, C.E., & Weaver, W. (1964). The mathematical theory of communication. Urbana, IL: University of Illinois Press.
Simon, A., & Boyer, E.G. (1971). Mirrors for behaviors: An anthology of classroom observation instruments. Vols. 1-17. Philadelphia, PA: Research for Better Schools.
Stivers, E., & Wheelan, S. (Eds.) (1986). The Lewin legacy: Field theory in current practice. New York, NY: Springer-Verlag.
Systems-Centered Training and Research Institute (Ed.) (2010). Systems-centered theory and practice: The contribution of Yvonne Agazarian. Livermore, CA: WingSpan Press. Reprint (2011). London, UK: Karnac Books.
Vandecreek, L., & Jackson, T. (Eds.). (2002). Innovations in clinical practice: A source book, Vol. 20. Sarasota, FL: Professional Resource Press.
Winnicott, D.W. (1971). Transitional objects and transitional phenomena. In Playing and reality (pp. 1-25). London, UK: Tavistock.
Yalom, I.D. (1995). The theory and practice of group psychotherapy (4th ed.). New York, NY: Basic Books.