Cita APA (7th ed.)

De Voto, B. A. (1952). The course of empire. Houghton Mifflin.

Cita Chicago (17th ed.)

De Voto, Bernard Augustine. The Course of Empire. Boston: Houghton Mifflin, 1952.

Cita MLA (9th ed.)

De Voto, Bernard Augustine. The Course of Empire. Houghton Mifflin, 1952.