Mineral commodities of California;  geologic occurrence, economic development, and utilization of the state's mineral resources ... 
prepared by the staff of the Division of mines under the direction of Olaf P. Jenkins ... 
 - San Francisco,  1950. 
 - 443 p. 
 - Its Bulletin 156 .
<br/><br/>Bibliographical footnotes. 
<br/><br/><label>LCCN: </label>gs 50000116  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources--California.<br/>Mineral industries--California.<br/>Directories.
<br/><br/><label>LC Class. No.: </label>TN24.C2  / A3 no. 156