Cita APA

Schneider, L., Stephan, C. W., & Zarcher, L. A. (1981). Human responses to social problems.

Citación estilo Chicago

Schneider, Louis, Cookie White Stephan, y Louis A. Zarcher. Human Responses to Social Problems. Illinois, Dorsey Press, 1981.

Cita MLA

Schneider, Louis, et al. Human Responses to Social Problems. 1981.