Cita APA (7a ed.)

Patton, F. L. (1926). Diminishing returns in agriculture. Columbia University.

Cita Chicago Style (17a ed.)

Patton, F. Lester. Diminishing Returns in Agriculture. New York: Columbia University, 1926.

Cita MLA (8a ed.)

Patton, F. Lester. Diminishing Returns in Agriculture. Columbia University, 1926.