APA (7th ed.) Citation

Keene, C. (1959). The Hidden Staircase. Grosset & DunlapPublisher.

Chicago Style (17th ed.) Citation

Keene, Carolyn. The Hidden Staircase. Grosset & DunlapPublisher, 1959.

MLA (8th ed.) Citation

Keene, Carolyn. The Hidden Staircase. Grosset & DunlapPublisher, 1959.

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