Cita APA (7th ed.)

Christie, A. (1964). The mysterious Mr. Quin (New ed.). Dell.

Cita Chicago (17th ed.)

Christie, Agatha. The Mysterious Mr. Quin. New ed. New York: Dell, 1964.

Cita MLA (9th ed.)

Christie, Agatha. The Mysterious Mr. Quin. New ed. Dell, 1964.