APA Style

Asimov, Isaac. (1982). FOUNDATION'S EDGE . New York: Ballantine Books.

Chicago Style

Asimov, Isaac. FOUNDATION'S EDGE. New York: Ballantine Books, 1982. Text.

MLA Style

Asimov, Isaac. FOUNDATION'S EDGE. New York: Ballantine Books, 1982. Text.

Turabian Style

Asimov, Isaac. FOUNDATION'S EDGE. New York: Ballantine Books, 1982. Print.