APA (7th ed.) Citation

De Camp, L. S. (1980). The purple pterodactyls: The adventures of W. Wilson Newbury, ensorcelled financier. Ace Books.

Chicago Style (17th ed.) Citation

De Camp, Lyon Sprague. The Purple Pterodactyls: The Adventures of W. Wilson Newbury, Ensorcelled Financier. New York: Ace Books, 1980.

MLA (9th ed.) Citation

De Camp, Lyon Sprague. The Purple Pterodactyls: The Adventures of W. Wilson Newbury, Ensorcelled Financier. Ace Books, 1980.