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Please read BHL's Acknowledgment of Harmful Content
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  1. By: Dixon, C H
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 89
    Date: 1977
    Page Range: 12--12
    Publication Info: [London s.n
  2. By: Dixon, C H
    Type: Article
    In: The entomologist's record and journal of variation
    Volume: 90
    Date: 1978
    Page Range: 56--56
    Publication Info: [London s.n