Hartshorn, T. A. (2000). Economic Geography (3rd ed.). Pentice Hall.
Chicago-čujuhus (17. p.)Hartshorn, Truman A. Economic Geography. 3rd ed. New Delhi: Pentice Hall, 2000.
MLA-čujuhus (9. p.)Hartshorn, Truman A. Economic Geography. 3rd ed. Pentice Hall, 2000.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.