APA (7th ed.) Citation

Asimov, I. (1953). Second foundation. Doubleday.

Chicago Style (17th ed.) Citation

Asimov, Isaac. Second Foundation. Garden City, N.Y.: Doubleday, 1953.

MLA (9th ed.) Citation

Asimov, Isaac. Second Foundation. Doubleday, 1953.

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