Cita APA (7a ed.)

Scott, W., & Paul, J. B. (1941). Permanent agriculture, a textbook of general agriculture. J. Wiley & sons.

Cita Chicago Style (17a ed.)

Scott, Winfield, y Joseph B. Paul. Permanent Agriculture, a Textbook of General Agriculture. New York: J. Wiley & sons, 1941.

Cita MLA (9a ed.)

Scott, Winfield, y Joseph B. Paul. Permanent Agriculture, a Textbook of General Agriculture. J. Wiley & sons, 1941.