Rothrock, Howard Eugene,  1895- <br/><br/>
Fluorspar resources of New Mexico, 
by Howard E. Rothrock, C. H. Johnson, and A. D. Hahn. 
 - Socorro,  1946. 
 - 245 p.  illus., diagrs (part fold. part in pocket)  23 cm. 
<br/><br/> "Prepared chiefly by the Geological Survey and the Bureau of Mines, U. S. Department of the Interior." 
<br/><br/>Bibliography: p. 191-193. 
<br/><br/><label>LCCN: </label>gs 47000068  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fluorspar.
<br/><br/><label>LC Class. No.: </label>TN24.N6  / A232 no. 21