APA (7th ed.) Citation

Zavada, J. (1978). Penwhistle's prize. Ace books.

Chicago Style (17th ed.) Citation

Zavada, Jack. Penwhistle's Prize. New York: Ace books, 1978.

MLA (9th ed.) Citation

Zavada, Jack. Penwhistle's Prize. Ace books, 1978.

Warning: These citations may not always be 100% accurate.