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  1. By: Chapman, Frank M. (Frank Michler), - Phelps Venezuelan Expedition
    Publication info: New York City, The American Museum of Natural History, [1939]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.88,6O  Birds  Bolívar (State)  Central America  Classification  Oxyruncus  Oxyruncus cristatus phelpsi  Oxyruncus cristatus tocantinsi  South America  Venezuela
  2. By: Chapman, Frank M. (Frank Michler), - Phelps Venezuelan Expedition
    Publication info: New York City, The American Museum of Natural History, [1939]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.82(87)  Auyan-tepui, Mount (Venezuela)  Birds  Bolívar (State)  Classification  Life zones  Venezuela
  3. By: Zimmer, John T. (John Todd), - Phelps, William H. (William Henry),
    Publication info: New York City, The American Museum of Natural History, [1945]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.82(87)  Birds  Bolívar (State)  Classification  Venezuela