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  1. By: Ellender, R D - Cook, D W - Sheladia, V L - Johnson, R A
    Type: Article
    In: Gulf research reports
    Volume: 6
    Issue: 4
    Date: 1980
    Page Range: 371--376
    Publication Info: Ocean Springs, Miss, Gulf Coast Research Laboratory, 1961-
  2. By: Johnson, R A
    Type: Article
    In: The Canadian field-naturalist
    Volume: 51
    Issue: 9
    Date: 1937-12
    Page Range: 136--137
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  3. By: Johnson, R A
    Type: Article
    In: The Wilson bulletin
    Volume: 50
    Issue: 3
    Date: 1938
    Page Range: 161--170
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  4. By: Johnson, R A
    Type: Article
    In: The Canadian field-naturalist
    Volume: 48
    Issue: 1
    Date: 1934-01
    Page Range: 15--18
    Publication Info: Ottawa Ottawa Field-Naturalists' Club
  5. By: Johnson, R A
    Type: Article
    In: The Wilson bulletin
    Volume: 56
    Issue: 3
    Date: 1944
    Page Range: 161--168
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-