Cita APA (7th ed.)

Keene, C. (1974). Mystery of the ivory charm. Grosset and Dunlap.

Cita Chicago (17th ed.)

Keene, Carolyn. Mystery of the Ivory Charm. New York: Grosset and Dunlap, 1974.

Cita MLA (9th ed.)

Keene, Carolyn. Mystery of the Ivory Charm. Grosset and Dunlap, 1974.