00787nam a2200217Ia 4500001000700000003000500007005001700012008004100029010001700070035002000087040006000107043001200167050002000179082001000199245012800209260005100337300003700388650005500425710004700480710004200527100669BIBL20200624062619.0730226s1948    dcuab         000 0 eng c  aa  48006360   a(OCoLC)00564589  aColumbia Univ. LibrariescWSUdSERdm.c.dOCLdUDIdm/c  an-us---1 aTN23b.U76 1948  a338.200aMineral resources of the United Statescby the staffs of the Bureau of Mines and Geological Survey ; foreword by J.A. Krug.0 aWashington, D.C.bPublic Affairs Presscc1948.  aviii, 212 p.bill., mapsc29 cm. 0aMines and mineral resourceszUnited States.2Local10aUnited StatesbBureau of Mines.wcn2Local 0aGeological Survey (U.S.)  wcn2Local