APA (7th ed.) Citation

Velikovsky, I. (1950). Worlds in collision. Gollancz.

Chicago Style (17th ed.) Citation

Velikovsky, Immanuel. Worlds in Collision. London: Gollancz, 1950.

MLA (8th ed.) Citation

Velikovsky, Immanuel. Worlds in Collision. Gollancz, 1950.

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