(2013). SUSTAINABLE soil management. Apple Academic Press.
Chicago-čujuhus (17. p.)SUSTAINABLE Soil Management. Apple Academic Press, 2013.
MLA-čujuhus (9. p.)SUSTAINABLE Soil Management. Apple Academic Press, 2013.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.