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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Chesher, Richard H. - United States. Environmental Protection Agency. Office of Research and Monitoring.
    Publication info: [Washington, U.S. Environmental Protection Agency]; for sale by the Supt. of Docs., U.S. Govt. Print. Off, 1971
    Holding Institution: MBLWHOI Library
  1. By: Chesher, Richard H.
    Type: Article
    In: Breviora
    Volume: 305
    Date: 1968
    Page Range: 1--13
    Publication Info: Cambridge, Mass Museum of Comparative Zoology, Harvard University [1952-