(2008). Eight years of annual no-till cropping in Washington's winter wheat-summer fallow region. Washington State University Extension.
Chicago-Zitierstil (17. Ausg.)Eight Years of Annual No-till Cropping in Washington's Winter Wheat-summer Fallow Region. [Pullman, Wash.]: Washington State University Extension, 2008.
MLA-Zitierstil (9. Ausg.)Eight Years of Annual No-till Cropping in Washington's Winter Wheat-summer Fallow Region. Washington State University Extension, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.