Hartshorn, T. A. (2004). Economic geography. Prentice-Hall.
Chicago-čujuhus (17. p.)Hartshorn, Truman A. Economic Geography. New Delhi: Prentice-Hall, 2004.
MLA-čujuhus (9. p.)Hartshorn, Truman A. Economic Geography. Prentice-Hall, 2004.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.