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  1. By: Sim, Robert J.
    Publication info: Washington, D.C, U.S. Dept. of Agriculture, 1934
    Holding Institution: U.S. Department of Agriculture, National Agricultural Library
  1. By: Sim, Robert J.
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 44
    Date: 1936
    Page Range: 280--280
    Publication Info: Lawrence, Kan Allen Press [etc.]
  2. By: Sim, Robert J.
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 40
    Date: 1932
    Page Range: 379--383
    Publication Info: Lawrence, Kan Allen Press [etc.]
  3. By: Sim, Robert J.
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 45
    Date: 1937
    Page Range: 408--408
    Publication Info: Lawrence, Kan Allen Press [etc.]
  4. By: Sim, Robert J.
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 45
    Date: 1937
    Page Range: 402--402
    Publication Info: Lawrence, Kan Allen Press [etc.]
  5. By: Sim, Robert J.
    Type: Article
    In: The Wilson bulletin
    Volume: 23
    Series: new
    Issue: 2
    Date: 1911
    Page Range: 75--78
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  6. By: Sim, Robert J.
    Type: Article
    In: The Wilson bulletin
    Volume: 16
    Series: new
    Issue: 3
    Date: 1904
    Page Range: 67--74
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  7. By: Sim, Robert J.
    Type: Article
    In: Journal of the New York Entomological Society
    Volume: 38
    Date: 1930
    Page Range: 139--147
    Publication Info: Lawrence, Kan Allen Press [etc.]
  8. By: Sim, Robert J.
    Type: Article
    In: The Wilson bulletin
    Volume: 16
    Series: new
    Issue: 3
    Date: 1904
    Page Range: 80--82
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-