Cita APA (7a ed.)

Sayers, D. L. (1928). The unpleasantness at the Bellona Club. Harper.

Cita Chicago Style (17a ed.)

Sayers, Dorothy L. The Unpleasantness at the Bellona Club. New York: Harper, 1928.

Cita MLA (8a ed.)

Sayers, Dorothy L. The Unpleasantness at the Bellona Club. Harper, 1928.