Berger, R. L. (1982). Human behavior: A perpective for the helping professions (2ª ed.). Longman.
Chicago Style aipamenaBerger, Robert L. Human Behavior: A Perpective for the Helping Professions. 2ª ed. Longman, 1982.
MLA aipamenaBerger, Robert L. Human Behavior: A Perpective for the Helping Professions. 2ª ed. Longman, 1982.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.