Washington State University, Washington (State). Department of Agriculture, & United States. Department of Agriculture. Crop protection guide for tree fruits in Washington. Washington State University Extension.
Chicago Style (17th ed.) CitationWashington State University, Washington (State). Department of Agriculture, and United States. Department of Agriculture. Crop Protection Guide for Tree Fruits in Washington. Pullman, WA: Washington State University Extension.
MLA (8th ed.) CitationWashington State University, et al. Crop Protection Guide for Tree Fruits in Washington. Washington State University Extension.
Warning: These citations may not always be 100% accurate.