APA (7th ed.) Citation

Waltari, M. (1961). The secret of the kingdom. Putnam.

Chicago Style (17th ed.) Citation

Waltari, Mika. The Secret of the Kingdom. New York: Putnam, 1961.

MLA (9th ed.) Citation

Waltari, Mika. The Secret of the Kingdom. Putnam, 1961.

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