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  1. By: Youngman, Phillip M.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 76
    Issue: 3
    Date: 1962
    Page Range: 134--141
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Youngman, Phillip M.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 76
    Issue: 3
    Date: 1962
    Page Range: 172--173
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Youngman, Phillip M. - Gill, David A.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 82
    Issue: 3
    Date: 1968
    Page Range: 227--228
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Youngman, Phillip M.
    Type: Article
    In: University of Kansas publications, Museum of Natural History
    Volume: 9
    Date: 1958-02-21
    Page Range: 363--384
    Publication Info: Lawrence, University of Kansas,
  5. By: Youngman, Phillip M.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 77
    Issue: 1
    Date: 1963
    Page Range: 54--55
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  6. By: Youngman, Phillip M.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 81
    Issue: 4
    Date: 1967
    Page Range: 291--292
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  7. By: Youngman, Phillip M.
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 80
    Date: 1967
    Page Range: 31--34
    Publication Info: Washington, Biological Society of Washington,
  8. By: Youngman, Phillip M.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 107
    Issue: 2
    Date: 1993
    Page Range: 139--163
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  9. By: Youngman, Phillip M.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 78
    Issue: 1
    Date: 1964
    Page Range: 57--57
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  10. By: Youngman, Phillip M.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 76
    Issue: 4
    Date: 1962
    Page Range: 223--223
    Publication Info: Ottawa Ottawa Field-Naturalists' Club