APA (7th ed.) Citation

Gardner, J., & Antonucci, E. (1989). Grendel (Vintage Books edition.). Auwsf (023063-6).

Chicago Style (17th ed.) Citation

Gardner, John, and Emil Antonucci. Grendel. Vintage Books edition. New York: Auwsf (023063-6), 1989.

MLA (9th ed.) Citation

Gardner, John, and Emil Antonucci. Grendel. Vintage Books edition. Auwsf (023063-6), 1989.