Handbook of mining in the Lake Superior region. 
Prepared for the Lake Superior meeting of the American institute of mining and metallurgical engineers held in August, 1920. Section one, by Alexander N. Winchell ... Section two, by Engineers club of northern Minnesota, and Duluth engineers club. 
 - [Minneapolis,  Press of Byron & Learned company,  1920] 
 - 2p.l.,vii-xvi, 260 p.  incl. front. (port.) illus.,plates. fold.  maps, diagrs.  23cm. 
<br/><br/><label>LCCN: </label>gs 21000207  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources--Superior, Lake.<br/>Iron mines and mining--Superior, Lake.<br/>Copper mines and mining--Superior, Lake.
<br/><br/><label>LC Class. No.: </label>TN24.M5  / A6