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By: Sprague, Roderick, - United States. Division of Mycology and Disease Survey.Edition:Publication info: [Washington, D.C.], Division of Mycology and Disease Survey, Bureau of Plant Industry, United States Department of Agriculture, 1942Volume: v.134Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: Sprague, Roderick, - United States. Plant Disease Survey.Edition:Publication info: Beltsville, Md, Plant Disease Survey, Division of Mycology and Disease Survey, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, United States Department of Agriculture, 1946Volume: v.163Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections:
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By: Sprague, Roderick, - United States. Plant Disease Epidemics and Identification Section.Edition:Publication info: Beltsville, Md, Plant Disease Epidemics and Identification Section, Agricultural Research Service, United States Department of Agriculture, 1955Volume: v.232Series:Holding Institution: U.S. Department of Agriculture, National Agricultural LibrarySubjects:BHL Collections: