APA (7th ed.) Citation

Keene. (1939). The clue of the tapping heels. Grosset and Dunlap.

Chicago Style (17th ed.) Citation

Keene. The Clue of the Tapping Heels. New York: Grosset and Dunlap, 1939.

MLA (8th ed.) Citation

Keene. The Clue of the Tapping Heels. Grosset and Dunlap, 1939.

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