APA (7th ed.) Citation

Childe, G. (1946). What happened in history. Penguin Books.

Chicago Style (17th ed.) Citation

Childe, Gordon. What Happened in History. Penguin Books, 1946.

MLA (8th ed.) Citation

Childe, Gordon. What Happened in History. Penguin Books, 1946.

Warning: These citations may not always be 100% accurate.