APA

Wolman B. B., Knapp S., . (1981). Contemporary theories and systems in psychology. New York: Plenum Press.

Chicago

Wolman Benjamin B, Knapp Susan, . 1981. Contemporary theories and systems in psychology. New York: Plenum Press.

Harvard

Wolman B. B., Knapp S., . (1981). Contemporary theories and systems in psychology. New York: Plenum Press.

MLA

Wolman Benjamin B, Knapp Susan, . Contemporary theories and systems in psychology. New York: Plenum Press. 1981.