(1994). Map adventures / U.S. Department of the Interior, U.S. Geological Survey.
Chicago-čujuhus (17. p.)Map Adventures / U.S. Department of the Interior, U.S. Geological Survey. 1994.
MLA-čujuhus (9. p.)Map Adventures / U.S. Department of the Interior, U.S. Geological Survey. 1994.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.