Chicago

Butler, M. D. (Marvin D.), Oregon State University. Extension Service, Washington State University. Cooperative Extension, University of Idaho. Cooperative Extension System, United States. Dept. of Agriculture, and Pacific Northwest Cooperative Extension. 1994. Blue Mustard, Chorispora Tenella (pall.) Dc. : [Corvallis, Or.] : Oregon State University Extension Service ; [Olympia, Wash.] : Washington State University Cooperative Extension ; [Moscow, Idaho] : University of Idaho Cooperative Extension System ; [Washington, D.C.] : U.S. Dept. of Agriculture.