Cita APA

Brown, L. R., & Eckholm, E. P. (1974). By bread alone. New York: Praeger.

Citación estilo Chicago

Brown, Lester R., y Erik P. Eckholm. By Bread Alone. New York: Praeger, 1974.

Cita MLA

Brown, Lester R., y Erik P. Eckholm. By Bread Alone. New York: Praeger, 1974.