Cita APA (7a ed.)

Gardner, J. (1978). The Life and Times of Chaucer. Vintage.

Cita Chicago Style (17a ed.)

Gardner, John. The Life and Times of Chaucer. New York: Vintage, 1978.

Cita MLA (9a ed.)

Gardner, John. The Life and Times of Chaucer. Vintage, 1978.