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  1. By: Firth, Frank E. - Gudger, E. W. (Eugene Willis),
    Publication info: 1935
    Holding Institution: American Museum of Natural History Library
  2. By: Firth, Frank E. - Gudger, E. W. (Eugene Willis), - Lindner, Milton J. - McIlhenny, E. L.
    Publication info: 1936
    Holding Institution: American Museum of Natural History Library
  3. By: Firth, Frank E. - Nichols, John T. (John Treadwell),
    Publication info: 1936
    Holding Institution: American Museum of Natural History Library
  4. By: Firth, Frank E. - Gudger, E. W. (Eugene Willis),
    Publication info: 1936
    Holding Institution: American Museum of Natural History Library
  5. By: Firth, Frank E. - Gudger, E. W. (Eugene Willis),
    Publication info: 1937
    Holding Institution: American Museum of Natural History Library
  1. By: Firth, Frank E.
    Type: Article
    In: Zoologica : scientific contributions of the New York Zoological Society
    Volume: 24
    Date: 1939-11-02
    Page Range: 383--384
    Publication Info: New York,
  2. By: Nigrelli, Ross F. (Ross Franco), - Firth, Frank E.
    Type: Article
    In: Zoologica : scientific contributions of the New York Zoological Society
    Volume: 24
    Issue: 1
    Date: 1939-04-27
    Page Range: 1--10
    Publication Info: New York,
  3. By: Nichols, John T. (John Treadwell), - Firth, Frank E.
    Type: Article
    In: Proceedings of the Biological Society of Washington
    Volume: 52
    Date: 1939
    Page Range: 85--88
    Publication Info: Washington, Biological Society of Washington,