APA (7th ed.) Citation

Gamow, G. (1944). Mr. Tompkins explores the atom. The University press.

Chicago Style (17th ed.) Citation

Gamow, George. Mr. Tompkins Explores the Atom. New York: The University press, 1944.

MLA (9th ed.) Citation

Gamow, George. Mr. Tompkins Explores the Atom. The University press, 1944.

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