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  1. By: Wrigley, Robert E.
    Publication info: Urbana, University of Illinois Press, [1972]
    Holding Institution: University Library, University of Illinois Urbana Champaign
  1. By: Wrigley, Robert E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 103
    Issue: 4
    Date: 1989
    Page Range: 630--631
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  2. By: Wrigley, Robert E. - Dubois, John E. - Copeland, Herbert W. R.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 105
    Issue: 1
    Date: 1991
    Page Range: 1--12
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Wrigley, Robert E. - Dubois, John E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 87
    Issue: 2
    Date: 1973
    Page Range: 167--169
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  4. By: Wrigley, Robert E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 83
    Issue: 3
    Date: 1969
    Page Range: 201--211
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Wrigley, Robert E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 104
    Issue: 2
    Date: 1990
    Page Range: 337--337
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  6. By: Wrigley, Robert E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 103
    Issue: 3
    Date: 1989
    Page Range: 445--446
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  7. By: Wrigley, Robert E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 89
    Issue: 3
    Date: 1975
    Page Range: 329--331
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  8. By: Wrigley, Robert E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 88
    Issue: 1
    Date: 1974
    Page Range: 21--39
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  9. By: Wrigley, Robert E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 89
    Issue: 4
    Date: 1975
    Page Range: 466--466
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  10. By: Nero, Robert W. - Wrigley, Robert E.
    Type: Article
    In: The Canadian field-naturalist
    Volume: 91
    Issue: 1
    Date: 1977
    Page Range: 28--40
    Publication Info: Ottawa Ottawa Field-Naturalists' Club