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  1. By: Van Frank, Richard - Simpson, George Gaylord,
    Publication info: New York, N.Y American Museum of Natural History [1957]
    Holding Institution: American Museum of Natural History Library
  2. By: Simpson, George Gaylord, - Van Frank, Richard
    Publication info: 1957
    Holding Institution: American Museum of Natural History Library
  1. By: Van Frank, Richard
    Type: Article
    In: Breviora
    Volume: 45
    Date: 1955
    Page Range: 1--12
    Publication Info: Cambridge, Mass Museum of Comparative Zoology, Harvard University [1952-