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  1. By: Bulger, Raymond O. - United States. Bureau of Plant Industry. Office of Cereal Crops and Diseases.
    Publication info: [Washington, D.C.] :[United States Department of Agriculture, Bureau of Plant Industry, Office of Cereal Crops and Diseases],[1926?]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Bulger, Raymond O. - United States. Bureau of Plant Industry. Office of Cereal Crops and Diseases.
    Publication info: [Washington, D.C.] :United States Department of Agriculture, Bureau of Plant Industry, Office of Cereal Crops and Diseases,[1927]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  3. By: Bulger, Raymond O. - Richardson, John L. - United States. Bureau of Plant Industry. Office of Cereal Crops and Diseases.
    Publication info: [Washington, D.C.] :[United States Department of Agriculture, Bureau of Plant Industry, Office of Cereal Crops and Diseases],[1928?]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library