(1985). Agricultural chartbook / United States Department of Agriculture.
Chicago-čujuhus (17. p.)Agricultural Chartbook / United States Department of Agriculture. 1985.
MLA-čujuhus (9. p.)Agricultural Chartbook / United States Department of Agriculture. 1985.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.