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  1. By: Whittle, K.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  2. By: Whittle, K. - Ferguson, D.C.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  3. By: Whittle, K.
    Publication info: [Hyattsville, Md.] ;Animal and Plant Health Service, U.S. Dept. of Agriculture,[1986]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  4. By: Whittle, K. - United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs,
    Publication info: [Hyattsville, MD] :United States Department of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine,September 1985.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  5. By: Whittle, K. - United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs,
    Publication info: [Hyattsville, MD] :United States Department of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine,September 1984.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  6. By: Whitehead, Donald R. - Whittle, K. - United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs,
    Publication info: [Hyattsville, MD] :United States Department of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine,September 1985.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  7. By: Whittle, K.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  8. By: Whittle, K. - Norrbom, A.L.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  9. By: Whittle, K. - Anderson, D.M.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  10. By: Whittle, K.
    Publication info: [Hyattsville, Md.] :Animal and Plant Health Service, U.S. Dept. of Agriculture,[1986]
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  11. By: Whittle, K. - Ferguson, D.C.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  12. By: Whittle, K.
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library