APA (7th ed.) Citation

Eco, U., & Weaver, W. (1983). The name of the rose. Warner Books.

Chicago Style (17th ed.) Citation

Eco, Umberto, and William Weaver. The Name of the Rose. New York: Warner Books, 1983.

MLA (9th ed.) Citation

Eco, Umberto, and William Weaver. The Name of the Rose. Warner Books, 1983.