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  1. By: Zimmer, John T. (John Todd),
    Publication info: New York, American Museum of Natural History, [1953]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.88,9T(85)  Birds  Classification  Hummingbirds  Peru  South America  
  2. By: Zimmer, John T. (John Todd),
    Publication info: New York, American Museum of Natural History, [1952]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.88,9T(85)  Birds  Classification  Hummingbirds  Peru  South America  
  3. By: Zimmer, John T. (John Todd),
    Publication info: New York, American Museum of Natural History, [1951]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.88,9T(85)  Birds  Classification  Hummingbirds  Peru  South America  
  4. By: Zimmer, John T. (John Todd),
    Publication info: New York, American Museum of Natural History, [1951]
    Holding Institution: American Museum of Natural History Library
    Subjects: 59.88,9T(85)  Birds  Classification  Hummingbirds  Peru  South America