APA (7th ed.) Citation

De Camp, L. S. (1983). The unbeheaded king. Ballantine Books.

Chicago Style (17th ed.) Citation

De Camp, L. Sprague. The Unbeheaded King. New York: Ballantine Books, 1983.

MLA (9th ed.) Citation

De Camp, L. Sprague. The Unbeheaded King. Ballantine Books, 1983.

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