APA (7th ed.) Citation

Asimov, I. (1964). Second foundation. Avon Books.

Chicago Style (17th ed.) Citation

Asimov, Isaac. Second Foundation. New York: Avon Books, 1964.

MLA (9th ed.) Citation

Asimov, Isaac. Second Foundation. Avon Books, 1964.

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