Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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