(2006). Abstracts. 18th World congress of soil science (July 9-15, 2006, Philadelphia).
Chicago-čujuhus (17. p.)Abstracts. 18th World Congress of Soil Science (July 9-15, 2006, Philadelphia). 2006.
MLA-čujuhus (9. p.)Abstracts. 18th World Congress of Soil Science (July 9-15, 2006, Philadelphia). 2006.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.