Cita APA

Keene, C. (1981). The clue in the crossword cipher. Armada books.

Citación estilo Chicago

Keene, Carolyn. The Clue in the Crossword Cipher. New York: Armada books, 1981.

Cita MLA

Keene, Carolyn. The Clue in the Crossword Cipher. Armada books, 1981.

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