Chicago

State University. Extension Service, Oregon, Washington State University. Cooperative Extension, University of Idaho. Cooperative Extension Service, United States. Dept. of Agriculture, Pacific Northwest Cooperative Extension, N. S Mansour, James R Baggett et al. 1985. Turnip & Rutabaga Seed Production In the Pacific Northwest. : [Corvallis, Or.?] : Oregon State University Extension Service, Washington State University Cooperative Extension, University of Idaho Cooperative Extension Service and U.S. Dept. of Agriculture.