- John Gardner. Grendel. New York: Vintage Books, 1989.
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"Grendel." Twentieth-Century Literary Criticism. Ed. Thomas J. Shoenberg and Lawrence J. Trudeau. Vol. 195. Detroit: Gale, 2008.
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Stromme, Graig J. "The Twelve Chapters of Grendel." Novels for Students. Gale, 1998.
- Snodgrass, Mary Ellen. "Gardner, John." Bloom's Literary Reference Online. 2006-09-23. 2010-10-23. <http://fofweb.com/activelink2.asp?ItemID=WE54&SID=5&iPin= EGL145&SingleRecord=True.>.
- Scott Kenemore. "Grendel." The Facts on File Companion to the American Novel. 2006-07-06. 2010-10-23. <http://fofweb.com/activelink2.asp?ItemID=WE54&SID=5&iPin= CANov0389&SingleRecord=True.>.
- Matthe J. Bruccoli and Judith S. Baugman. "Grendel." Student's Encyclopedia of American Literary Characters. 2009-08-04. 2010-10-23. <http://fofweb.com/activelink2.asp?ItemID=WE54&SID=5&iPin= SEOALC273&SingleRecord=True.>.
Grendel
by John Gardner