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  1. Geographic variation among brown and grizzly bears (Ursus arctos) in North America / by E. Raymond Hall.
    By: Hall, E. Raymond - University of Kansas.
    Publication info: Lawrence :University of Kansas :1984.
    Contributed by: Harvard University, MCZ, Ernst Mayr Library
    Subjects: Brown bear  Grizzly bear  Mammals  mcz  North America  Ursus arctos  Variation  
    BHL Collections: Ernst Mayr Library of the MCZ, Harvard University
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