Cita APA (7th ed.)

Clark, K. (1969). Civilisation: A personal view. Penguin.

Cita Chicago (17th ed.)

Clark, Kenneth. Civilisation: A Personal View. Harmondsworth: Penguin, 1969.

Cita MLA (9th ed.)

Clark, Kenneth. Civilisation: A Personal View. Penguin, 1969.