Schneider, L., Stephan, C. W., & Zarcher, L. A. (1981). Human responses to social problems.
Chicago Style aipamenaSchneider, Louis, Cookie White Stephan, and Louis A. Zarcher. Human Responses to Social Problems. Illinois, Dorsey Press, 1981.
MLA aipamenaSchneider, Louis, et al. Human Responses to Social Problems. 1981.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.