MLA

Wilder, Kris L, and Timothy L Righetti. Identifying Nutrient Deficiency and Toxicity In Red Raspberry. : [Corvallis, Or.] : Oregon State University Extension Service ; [Pullman, Wash.] : Washington State University Cooperative Extension ; [Moscow, Idaho] : University of Idaho Cooperative Extension System ; [Washington, D.C.] : U.S. Dept. of Agriculture, 1991.