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Summary of New Information on Uraniferous Lignites in the Dakotas
N. M. Denson
George Odell Bachman
Howard Davis Zeller
出版
U.S. Department of Interior, Geological Survey
, 1951
URL
http://books.google.com.hk/books?id=9qWKYgEACAAJ&hl=&source=gbs_api