APA (7th ed.) Citation

Ries, A., Trout, J., & Gardner, G. (2001). Positioning: The battle for your mind ([First edition].). McGraw Hill-Ascent Audio.

Chicago Style (17th ed.) Citation

Ries, Al, Jack Trout, and Grover Gardner. Positioning: The Battle for Your Mind. [First edition]. [Place of publication not identified]: McGraw Hill-Ascent Audio, 2001.

MLA (9th ed.) Citation

Ries, Al, et al. Positioning: The Battle for Your Mind. [First edition]. McGraw Hill-Ascent Audio, 2001.