(1973). Dictionary of the environmental sciences. National Pr.
Chicago-čujuhus (17. p.)Dictionary of the Environmental Sciences. California: National Pr, 1973.
MLA-čujuhus (9. p.)Dictionary of the Environmental Sciences. National Pr, 1973.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.