APA (7th ed.) Citation

Gamow, G. (1941). Biography of the earth, its past, present, and future. The Viking press.

Chicago Style (17th ed.) Citation

Gamow, George. Biography of the Earth, Its Past, Present, and Future. New York: The Viking press, 1941.

MLA (8th ed.) Citation

Gamow, George. Biography of the Earth, Its Past, Present, and Future. The Viking press, 1941.

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