Incoming Resources
- Human behavior in the social environment, a social systems approach, Ralph E. Anderson and Irl Carter with Gary R. Lowe
- Essays on self-reference, Niklas Luhmann
- Marriage and marital therapy, psychoanalytic, behavioral, and systems theory perspectives, edited by Thomas J. Paolino, Jr., and Barbara S. McCrady
- Working with the elderly, a social systems approach, Ellie Brubaker