Gupta,Alok K <br/><br/>
Young potassic rocks 

 - New Delhi  Ane books  2003 
 - xviii,370p.  HB  22cm. 
<br/><br/><label>ISBN: </label>8180520021 
<br/><br/><label>Dewey Class. No.: </label>553.636  / GUP