Knopf, Adolph,  1882- <br/><br/>
The Mother Lode system of California, 
by Adolph Knopf.  Prepared in cooperation with the California State Mining Bureau. 
 - Washington,  U.S. Govt. Print. Off.,  1929. 
 - viii, 88 p. incl. illus., tables, diagrs.  12 pl. (part fold., incl. maps (1 col.))  29 cm. 
 - United States.  Geological Survey.  Professional paper  157 .
 - Geological Survey professional paper ;  157. .
<br/><br/> At head of title: Department of the Interior.  Map folded in pocket. 
<br/><br/><label>LCCN: </label>gs 29000083  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ore deposits--California.<br/>Gold mines and mining--California.
<br/><br/><label>LC Class. No.: </label>QE75  / .P9 no. 157 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.16:157