Castello, Walter Owen,  1887- <br/><br/>
The commercial minerals of California,  with notes on their uses, distribution, properties, ores, field tests, and preparation for market, 
by W. O. Castello. 
 - Sacramento,  California State Print. Off.,  1920. 
 - 124 p.  23 cm. 
<br/><br/> At head of title: California state mining bureau.  Fletcher Hamilton, state mineralogist.  "Publications of the California State mining bureau": p. 117-120. 
<br/><br/>Bibliography: p. 110-115. 
<br/><br/><label>LCCN: </label>gs 20000420  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mines and mineral resources--California.<br/>Mineral industries--California.
<br/><br/><label>LC Class. No.: </label>TN24.C2  / A3 no. 87