APA (7th ed.) Citation

Sayers, D. L. (1991). On the case with Lord Peter Wimsey. Wings Books.

Chicago Style (17th ed.) Citation

Sayers, Dorothy L. On the Case with Lord Peter Wimsey. New York: Wings Books, 1991.

MLA (8th ed.) Citation

Sayers, Dorothy L. On the Case with Lord Peter Wimsey. Wings Books, 1991.