Hartshorn, T. A., & Alexander , J. W. (2004). Economic geography (3rd ed.). Prentice-Hall.
Chicago Style (17th ed.) CitationHartshorn, Truman A., and John W. Alexander. Economic Geography. 3rd ed. New Delhi: Prentice-Hall, 2004.
MLA (9th ed.) CitationHartshorn, Truman A., and John W. Alexander. Economic Geography. 3rd ed. Prentice-Hall, 2004.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.