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By: United States. Department of Agriculture.Edition:Publication info: [Washington, D.C.], U.S. Dept. of Agriculture, 1988Volume: PA-1363Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: Soil conservation USDA Water conservation Wildlife managementBHL Collections:
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By: United States. Department of Agriculture.Edition:Publication info: [Washington, D.C.], U.S. Dept. of Agriculture, 1989Volume: PA-1395Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects: Biological control Insect pests Insects plant pathogens United States USDA vectorsBHL Collections: