APA (7th ed.) Citation

Asimov, I. (1993). Forward the foundation. Doubleday.

Chicago Style (17th ed.) Citation

Asimov, Isaac. Forward the Foundation. New York u.a: Doubleday, 1993.

MLA (9th ed.) Citation

Asimov, Isaac. Forward the Foundation. Doubleday, 1993.

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