APA (7th ed.) Citation

Cowper, R. (1975). The twilight of Briareus. Daw Books.

Chicago Style (17th ed.) Citation

Cowper, Richard. The Twilight of Briareus. New York: Daw Books, 1975.

MLA (8th ed.) Citation

Cowper, Richard. The Twilight of Briareus. Daw Books, 1975.