APA (7th ed.) Citation

Irving, J. (1990). The world according to Garp (First Ballantine Books edition.). The Ballantine Publishing Group.

Chicago Style (17th ed.) Citation

Irving, John. The World According to Garp. First Ballantine Books edition. New York: The Ballantine Publishing Group, 1990.

MLA (9th ed.) Citation

Irving, John. The World According to Garp. First Ballantine Books edition. The Ballantine Publishing Group, 1990.

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