APA (7th ed.) Citation

Keene. (1945). The clue in the crumbling wall. Grosset and Dunlap.

Chicago Style (17th ed.) Citation

Keene. The Clue in the Crumbling Wall. New York: Grosset and Dunlap, 1945.

MLA (8th ed.) Citation

Keene. The Clue in the Crumbling Wall. Grosset and Dunlap, 1945.

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