APA (7th ed.) Citation

Asimov, I. (1982). The Foundation trilogy: Three science fiction classics. Doubleday.

Chicago Style (17th ed.) Citation

Asimov, Isaac. The Foundation Trilogy: Three Science Fiction Classics. [Garden City, N.Y.: Doubleday, 1982.

MLA (8th ed.) Citation

Asimov, Isaac. The Foundation Trilogy: Three Science Fiction Classics. Doubleday, 1982.

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