APA (7th ed.) Citation

Duck, S. (1983). Friends, for life: The psychology of close relationships. St. Martin's Press.

Chicago Style (17th ed.) Citation

Duck, Steve. Friends, for Life: The Psychology of Close Relationships. New York: St. Martin's Press, 1983.

MLA (8th ed.) Citation

Duck, Steve. Friends, for Life: The Psychology of Close Relationships. St. Martin's Press, 1983.