Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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