APA (7th ed.) Citation

Asimov, I. (1976). The planet that wasn't. Doubleday.

Chicago Style (17th ed.) Citation

Asimov, Isaac. The Planet That Wasn't. Garden City, N.Y.: Doubleday, 1976.

MLA (9th ed.) Citation

Asimov, Isaac. The Planet That Wasn't. Doubleday, 1976.

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