Annual Meeting Papers 2004/Ottawa, Canada. ASABE.
Chicago-čujuhus (17. p.)Annual Meeting Papers 2004/Ottawa, Canada. ASABE.
MLA-čujuhus (9. p.)Annual Meeting Papers 2004/Ottawa, Canada. ASABE.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.