(1975). Encyclopedia of world regional geology. Dowden.
Chicago-čujuhus (17. p.)Encyclopedia of World Regional Geology. Stroudsburg: Dowden, 1975.
MLA-čujuhus (9. p.)Encyclopedia of World Regional Geology. Dowden, 1975.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.