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Please read BHL's Acknowledgment of Harmful Content
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  1. By: United States. Plant Pest Control Branch.
    Publication info: [Washington, D.C.], U.S. Dept. of Agriculture, [1956]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs. - United States. Animal and Plant Health Service. Plant Protection and Quarantine Programs. - United States. Bureau of Entomology and Plant Quarantine. - United States. Bureau of Entomology and Plant Quarantine. - United States. Plant Pest Control Branch. - United States. Plant Pest Control Division - United States. Plant Pest Control Division.
    Publication info: Hyattsville, MD. [etc.], Plant Protection and Quarantine Programs Animal and Plant Health Service,
    Holding Institution: Multiple institutions
  3. By: United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs. - United States. Bureau of Entomology and Plant Quarantine. - United States. Plant Pest Control Branch. - United States. Plant Pest Control Division.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, 1951-1975
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  4. By: United States. Plant Pest Control Branch.
    Publication info: Washington, 1955
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  5. By: United States. Plant Pest Control Branch.
    Publication info: Washington, 1956
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  6. By: United States. Plant Pest Control Branch.
    Publication info: Washington, D.C, Plant Pest Control Branch, Agricultural Research Service, [1955]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library