APA (7th ed.) Citation

Gray, D. (2003). The Oxford companion to Chaucer. Oxford University Press.

Chicago Style (17th ed.) Citation

Gray, Douglas. The Oxford Companion to Chaucer. Oxford ; New York: Oxford University Press, 2003.

MLA (9th ed.) Citation

Gray, Douglas. The Oxford Companion to Chaucer. Oxford University Press, 2003.