APA (7th ed.) Citation

Cumming, C., & Vance, S. (2007). A spy by nature. Tantor Audio.

Chicago Style (17th ed.) Citation

Cumming, Charles, and Simon Vance. A Spy by Nature. [Old Saybrook, Conn]: Tantor Audio, 2007.

MLA (8th ed.) Citation

Cumming, Charles, and Simon Vance. A Spy by Nature. Tantor Audio, 2007.

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