APA (7th ed.) Citation

Keene, C. (1988). The clue in the old stagecoach (37). Grosset & Dunlap.

Chicago Style (17th ed.) Citation

Keene, Carolyn. The Clue in the Old Stagecoach (37). New York: Grosset & Dunlap, 1988.

MLA (9th ed.) Citation

Keene, Carolyn. The Clue in the Old Stagecoach (37). Grosset & Dunlap, 1988.