APA (7th ed.) Citation

Cronin, A. J. (1956). The keys of the kingdom. Bantam Books.

Chicago Style (17th ed.) Citation

Cronin, Archibald Joseph. The Keys of the Kingdom. Nueva York: Bantam Books, 1956.

MLA (9th ed.) Citation

Cronin, Archibald Joseph. The Keys of the Kingdom. Bantam Books, 1956.