APA (7th ed.) Citation

Keene, C. (1991). The moonstone castle mystery (40). Grosset & Dunlap.

Chicago Style (17th ed.) Citation

Keene, Carolyn. The Moonstone Castle Mystery (40). New York: Grosset & Dunlap, 1991.

MLA (9th ed.) Citation

Keene, Carolyn. The Moonstone Castle Mystery (40). Grosset & Dunlap, 1991.

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