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The Cretaceous Smoky Group, Rocky Mountain Foothills, Alberta and British Columbia
Donald F. StottCanada. Department of Mines and Technical Surveys
出版Department of Mines and Technical Surveys, 1967
ISBN06601108579780660110851
URLhttp://books.google.com.hk/books?id=bw25g4B-BzEC&hl=&source=gbs_api