APA (7th ed.) Citation

Velikvsky, I. (1950). World in collision. Doubleday.

Chicago Style (17th ed.) Citation

Velikvsky, Immanuel. World in Collision. New York: Doubleday, 1950.

MLA (9th ed.) Citation

Velikvsky, Immanuel. World in Collision. Doubleday, 1950.

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