APA (7th ed.) Citation

Childe, V. G. (1954). What happened in history (Rev. ed.). Penguin.

Chicago Style (17th ed.) Citation

Childe, V. Gordon. What Happened in History. Rev. ed. Baltimore: Penguin, 1954.

MLA (9th ed.) Citation

Childe, V. Gordon. What Happened in History. Rev. ed. Penguin, 1954.