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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Schwartz, Albert, - Graham, Eugene D. Jr. - Duval, Julian J.
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 92
    Date: 1979
    Page Range: 1--9
    Publication Info: Washington, Biological Society of Washington,
  2. By: Schwartz, Albert, - Graham, Eugene D. Jr.
    Type: Article
    In: Tulane studies in zoology and botany
    Volume: 22
    Date: 1980
    Page Range: 1--15
    Publication Info: New Orleans, Tulane University, [1968-