Cita APA (7th ed.)

Wheeler, H. (1971). Democracy in a revolutionary era: The political order today. Penguin.

Cita Chicago (17th ed.)

Wheeler, Harvey. Democracy in a Revolutionary Era: The Political Order Today. Harmondsworth: Penguin, 1971.

Cita MLA (8th ed.)

Wheeler, Harvey. Democracy in a Revolutionary Era: The Political Order Today. Penguin, 1971.