APA (7th ed.) Citation

De Camp, L. S., & Pratt, F. (1948). The carnelian cube. Lancer Books.

Chicago Style (17th ed.) Citation

De Camp, L. Sprague, and Fletcher Pratt. The Carnelian Cube. New York: Lancer Books, 1948.

MLA (9th ed.) Citation

De Camp, L. Sprague, and Fletcher Pratt. The Carnelian Cube. Lancer Books, 1948.