(1972). The encyclopedia of geochemistry and environmental sciences. Dowden.
Chicago-čujuhus (17. p.)The Encyclopedia of Geochemistry and Environmental Sciences. Stroudsburg: Dowden, 1972.
MLA-čujuhus (9. p.)The Encyclopedia of Geochemistry and Environmental Sciences. Dowden, 1972.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.