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The Geology and Magnetite Deposits of Northern St. Louis County, Minnesota
Clinton Raymond Stauffer
Frank Fitch Grout
Ira Shimmin Allison
Minnesota Geological Survey
George Alfred Thiel
出版
University of Minnesota Press
, 1926
URL
http://books.google.com.hk/books?id=1UsiAQAAMAAJ&hl=&source=gbs_api
