Olson, Jerry Chipman,  1917- <br/><br/>
Rare-earth mineral deposits of the Mountain Pass district, San Bernardino County, California, 
by J. C. Olson [and others] with a foreword on History of the discovery at Mountain Pass, California, by D. F. Hewett. 
 - Washington,  U.S. Govt. Print. Off.,  1954. 
 - 75 p.  illus., maps (part col.)  29 cm. 
<br/><br/> Part of the illustrative matter folded in pocket. 
<br/><br/>Bibliography: p. 64-65. 
<br/><br/><label>LCCN: </label>gs 55000233  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rare earths<br/>Geology--California--San Bernardino County<br/>Mines and mineral resources--California--San Bernardino County<br/>Mines and mineral resources--History--California
<br/><br/><label>LC Class. No.: </label>TN490.A2  / O55 
<br/><br/><label>Dewey Class. No.: </label>553.49 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 19.16:261