DAVIS, Robert E. <br/><br/>
Magnesium resources of the United States : a geologic summary and annotated bibliography to 1953 / 
by Robert E. Davis. 
 -- Washington :   United States Government Printing Office,   1957 
 - P. 373-515. -- 
 (Geological Survey Bulletin  ;  1019-E).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Estados Unidos<br/>Yacimientos de magnesio
<br/><br/><label>Universal Decimal Class. No.: </label>553.67(73)