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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Kirby, Richard Shelton, - American Phytopathological Society. Middle Atlantic States Section. - American Phytopathological Society. War Emergency Committee. - United States. Plant Disease Survey.
    Publication info: [Washington, D.C.], Plant Disease Survey, Division of Mycology and Disease Survey, Bureau of Plant Industry, Agricultural Research Administration, United States Department of Agriculture, 1943
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library