APA (7th ed.) Citation

Brown, L. R., & Eckholm, E. P. (1975). By bread alone. Pergamon.

Chicago Style (17th ed.) Citation

Brown, Lester Russell, and Erik P. Eckholm. By Bread Alone. Oxford: Pergamon, 1975.

MLA (9th ed.) Citation

Brown, Lester Russell, and Erik P. Eckholm. By Bread Alone. Pergamon, 1975.