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  1. By: Beer, Robert E - Lang, D S
    Type: Article
    In: The Pan-Pacific entomologist
    Volume: 33
    Date: 1957
    Page Range: 87--89
    Publication Info: San Francisco, Pacific Coast Entomological Society,
  2. By: Beer, Robert E
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 66
    Date: 1958
    Page Range: 153--159
    Publication Info: Lawrence, Kan Allen Press [etc.]
  3. By: Beer, Robert E
    Type: Article
    In: The University of Kansas science bulletin
    Volume: 36
    Date: 1954
    Page Range: 1091--1387
    Publication Info: [Lawrence], University of Kansas, [1926-1996]
  4. By: Beer, Robert E - Lang, D S
    Type: Article
    In: The University of Kansas science bulletin
    Volume: 38
    Date: 1958
    Page Range: 1231--1259
    Publication Info: [Lawrence], University of Kansas, [1926-1996]