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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Pratt, Harry D
    Type: Article
    In: Journal of the Washington Academy of Sciences
    Volume: 41
    Date: 1951
    Page Range: 300--302
    Publication Info: Washington [etc Washington Academy of Sciences]
  2. By: Pratt, George K - Pratt, Harry D
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 82
    Issue: 1
    Date: 1980
    Page Range: 86--98
    Publication Info: Washington, etc, Entomological Society of Washington,
  3. By: Pratt, Harry D
    Type: Article
    In: Psyche
    Volume: 45
    Issue: 2-3
    Date: 1938
    Page Range: 94--95
    Publication Info: Cambridge, Mass, Cambridge Entomological Club,
  4. By: Pratt, Harry D
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 48
    Date: 1940
    Page Range: 155--193
    Publication Info: Lawrence, Kan Allen Press [etc.]
  5. By: Pratt, Harry D
    Type: Article
    In: Proceedings of the Entomological Society of Washington
    Volume: 105
    Date: 2003
    Page Range: 901--914
    Publication Info: Washington, etc, Entomological Society of Washington,