APA (7th ed.) Citation

Keene. (1979). The thirteenth pearl. Grosset and Dunlap.

Chicago Style (17th ed.) Citation

Keene. The Thirteenth Pearl. New York: Grosset and Dunlap, 1979.

MLA (8th ed.) Citation

Keene. The Thirteenth Pearl. Grosset and Dunlap, 1979.

Warning: These citations may not always be 100% accurate.