APA (7th ed.) Citation

Childe, V. G. (1964). What happened in history. Penguin.

Chicago Style (17th ed.) Citation

Childe, V. Gordon. What Happened in History. Harmondsworth: Penguin, 1964.

MLA (8th ed.) Citation

Childe, V. Gordon. What Happened in History. Penguin, 1964.