Jahns, Richard H.  1915- <br/><br/>
Mica deposits of the Petaca district,  Rio Arriba County, New Mexico, with brief descriptions of the Ojo Caliente district, Rio Arriba County, and the Elk Mountain district, San Miguel County. 

 - Socorro,  1946. 
 - 294 p.  illus., maps (part fold., part in pocket)  23 cm. 
<br/><br/> "Prepared by the Geological Survey, U. S. Department of the Interior."  Five of the folded maps are in pocket. 
<br/><br/>Bibliography: p. 15-16. 
<br/><br/><label>LCCN: </label>gs 46000133  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mica.<br/>Mines and mineral resources--New Mexico.
<br/><br/><label>LC Class. No.: </label>TN24.N6  / A232 no. 25 
<br/><br/><label>Dewey Class. No.: </label>(622.0711789) 553.9