(2006). Guidelines for soil description (fourth edition.).
Chicago-čujuhus (17. p.)Guidelines for Soil Description. fourth edition. 2006.
MLA-čujuhus (9. p.)Guidelines for Soil Description. fourth edition. 2006.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.