APA (7th ed.) Citation

Leonard, J. (1973). This pen for hire. Doubleday.

Chicago Style (17th ed.) Citation

Leonard, John. This Pen for Hire. Garden City, NY: Doubleday, 1973.

MLA (9th ed.) Citation

Leonard, John. This Pen for Hire. Doubleday, 1973.

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