APA (7th ed.) Citation

Keene, C. (1996). The Clue in the crossword cipher. Grosset & Dunlap Publisher.

Chicago Style (17th ed.) Citation

Keene, Carolyn. The Clue in the Crossword Cipher. New York: Grosset & Dunlap Publisher, 1996.

MLA (9th ed.) Citation

Keene, Carolyn. The Clue in the Crossword Cipher. Grosset & Dunlap Publisher, 1996.