Citazione Stile APA (7a Edizione)

Hartshorn, T. A., & Alexander , J. W. (2004). Economic geography (3rd ed.). Prentice-Hall.

Citazione stile Chigago Style (17a edizione)

Hartshorn, Truman A., e John W. Alexander. Economic Geography. 3rd ed. New Delhi: Prentice-Hall, 2004.

Citatione MLA (9a ed.)

Hartshorn, Truman A., e John W. Alexander. Economic Geography. 3rd ed. Prentice-Hall, 2004.