APA Citation

De Camp, L. S. (1989). Citadels of mystery. New York: Ballantine Books.

Chicago Style Citation

De Camp, L. Sprague. Citadels of Mystery. New York: Ballantine Books, 1989.

MLA Citation

De Camp, L. Sprague. Citadels of Mystery. New York: Ballantine Books, 1989.

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