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Review of the Grizzly and Big Brown Bears of North America (genus Ursus)
Arthur Holmes Howell
Clinton Hart Merriam
Edward Alphonso Goldman
Merritt Cary
United States. Bureau of Biological Survey
其他書名
With Description of a New Genus, Vetularctos
出版
U.S. Government Printing Office
, 1918
URL
http://books.google.com.hk/books?id=H1h8gGFnLgkC&hl=&source=gbs_api
EBook
FULL_PUBLIC_DOMAIN
註釋
Characterizes five transcontinental life zones in Wyoming; defines their extent and limits; lists mammal, breeding bird, reptile, amphibian, and plant species; and provides notes on distribution and abundance of trees observed during the survey.
