Koschmann, A. H.  1896-1962 <br/><br/>
Principal gold-producing districts of the United States / 
by A. H. Koschmann and M. H. Bergendahl. 
 - Washington:   U. S. Government Printing Office,   1968.  
 - v, 283 p. :  diagr., maps ;  29 cm. 
 -  610 .
<br/><br/>Includes bibliographical references (p. 263-276) and index (p. 277-283). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gold mines and mining--United States<br/>Gold ores--United States
<br/><br/><label>Dewey Class. No.: </label>553.410973