Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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