Cita APA (7a ed.)

Bowen, E. (1931). An hypothesis of population growth. Columbia University.

Cita Chicago Style (17a ed.)

Bowen, Ezra. An Hypothesis of Population Growth. New York: Columbia University, 1931.

Cita MLA (8a ed.)

Bowen, Ezra. An Hypothesis of Population Growth. Columbia University, 1931.