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  1. By: Bolívar y Pieltain, Cándido,‏ - Bonet, F. (Federico), - Goodnight, Clarence J. (Clarence James), - Goodnight, Marie L. (Marie Louise), - Maldonado Koerdell, Manuel. - Osorio Tafall, Bibiano F. - Peláez, D. - Wagner, Helmuth Otto,
    Publication info: 1944
    Holding Institution: American Museum of Natural History Library
  2. By: Zweifel, Richard George, - Wagner, Helmuth Otto, - Meek, Seth E. (Seth Eugene),
    Publication info: New York, N.Y American Museum of Natural History [1960]
    Holding Institution: American Museum of Natural History Library
  3. By: Meek, Seth E. (Seth Eugene), - Wagner, Helmuth Otto, - Zweifel, Richard George,
    Publication info: 1960
    Holding Institution: American Museum of Natural History Library
  4. By: Bogert, Charles M. (Charles Mitchill), - Davis, A. M. - Davis, L. Irby. - Gertsch, Willis John, - Vokes, Harold Ernest, - Wagner, Helmuth Otto,
    Publication info: 1942
    Holding Institution: American Museum of Natural History Library
  1. By: Wagner, Helmuth Otto,
    Type: Article
    In: Zeitschrift für Säugetierkunde : im Auftrage der Deutschen Gesellschaft für Säugetierkunde e.V
    Volume: 31
    Date: 1966
    Page Range: 38--43
    Publication Info: Berlin, Die Gesellschaft, 1926-c2000
  2. By: Wagner, Helmuth Otto,
    Type: Article
    In: The Wilson bulletin
    Volume: 58
    Issue: 2
    Date: 1946
    Page Range: 69--93
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  3. By: Wagner, Helmuth Otto,
    Type: Article
    In: The Wilson bulletin
    Volume: 56
    Issue: 2
    Date: 1944
    Page Range: 65--76
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  4. By: Wagner, Helmuth Otto,
    Type: Article
    In: The Wilson bulletin
    Volume: 57
    Issue: 3
    Date: 1945
    Page Range: 165--187
    Publication Info: Columbus, Ohio, Wilson Ornithological Society, 1894-
  5. By: Wagner, Helmuth Otto,
    Type: Article
    In: Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn
    Volume: 6
    Date: 1955
    Page Range: 200--206
    Publication Info: Bonn, Das Forschungsinstitut,
  6. By: Wagner, Helmuth Otto,
    Type: Article
    In: Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn
    Volume: 4
    Date: 1953
    Page Range: 1--12
    Publication Info: Bonn, Das Forschungsinstitut,