The Mesabi iron-bearing district of Minnesota Leith, C. K. (Charles Kenneth), 1875-1956 creator text book Washington Govt. Print. Off 1903 1903
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ENG Iron mines and mining Iron ores Minnesota QE75 .M7 vol.43 557.76 Monographs of the United States Geological Survey, v. 43 https://www.biodiversitylibrary.org/bibliography/42496 https://www.biodiversitylibrary.org/bibliography/45578 553264 03014662 10.5962/bhl.title.45578 DLC