Cita APA (7a ed.)

(1972). Man Threatened: The Nature of Man. McDougal, Littell Co..

Cita Chicago Style (17a ed.)

Man Threatened: The Nature of Man. Illinois: McDougal, Littell Co., 1972.

Cita MLA (9a ed.)

Man Threatened: The Nature of Man. McDougal, Littell Co., 1972.