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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Benson, Mary F. - United States. Bureau of Entomology and Plant Quarantine.
    Edition: Rev. Apr. 1949.
    Publication info: Washington, D.C, U.S. G.P.O, 1949
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Colorado potato beetle  
  2. By: Benson, Mary F. - United States. Bureau of Entomology and Plant Quarantine.
    Publication info: [Washington, D.C.], Bureau of Entomology and Plant Quarantine, U.S. Dept. of Agriculture, 1937
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Colorado potato beetle  Internet resource  
  3. By: Breitenbecher, J. K. (Joseph Kumler),
    Publication info: Washington, 1918
    Holding Institution: Library of Congress
    Subjects: Colorado potato beetle  
  4. By: Chittenden, F. H. (Frank Hurlbut), - United States. Bureau of Entomology. - United States. Department of Agriculture.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, Bureau of Entomology, 1907
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
    Subjects: Agricultural pests  Colorado potato beetle
  5. By: Riley, Charles V. (Charles Valentine),
    Publication info: New York, O. Judd company, [c1876]
    Holding Institution: Library of Congress
    Subjects: Colorado potato beetle  Diseases and pests  Potatoes  
  6. By: Tower, William Lawrence,
    Publication info: Washington, D.C, Carnegie Institution of Washington, 1906
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Colorado potato beetle  Leptinotarsa  Variation (Biology)