APA (7th ed.) Citation

De Camp, L. S., & Pratt, F. (1979). Wall of serpents. Dell Publishing.

Chicago Style (17th ed.) Citation

De Camp, Lyon Sprague, and Fletcher Pratt. Wall of Serpents. New York: Dell Publishing, 1979.

MLA (9th ed.) Citation

De Camp, Lyon Sprague, and Fletcher Pratt. Wall of Serpents. Dell Publishing, 1979.