STEVENS, Rollin E. <br/><br/>
Second report on a cooperative investigation of the composition of two silicate rocks / 
by Rollin E. Stevens. 
 -- Washington :   United States Government Printing Office,   1960 
 - 126 p. -- 
 (Geological Survey Bulletin  ; 1113).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Silicatos
<br/><br/><label>Universal Decimal Class. No.: </label>549.6