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  1. By: Davis, Joseph Anthony, - Schaldach, William J. (William Joseph), - Chapin, Paul S.
    Publication info: New York, N.Y, American Museum of Natural History, [1957]
    Holding Institution: American Museum of Natural History Library
  2. By: Chapin, Paul S. - Davis, Joseph Anthony, - Schaldach, William J. (William Joseph),
    Publication info: 1957
    Holding Institution: American Museum of Natural History Library
  1. By: Schaldach, William J. (William Joseph), - McLaughlin, Charles A.
    Type: Article
    In: Contributions in science
    Volume: 37
    Date: 1960-05-19
    Page Range: 1--8
    Publication Info: Los Angeles, Calif, The Museum, [1957]-