Gill, Robin. <br/><br/>
Chemical fundamentals of geology / 
R. Gill. 
 - 2nd ed. 
 - New York :  Chapman & Hall,  1995. 
 - p.  cm. 
<br/><br/><label>ISBN: </label>0412549301 (pbk.) 
<br/><br/><label>LCCN: </label>95074644 
<br/><br/><label>LC Class. No.: </label>QC