Ernest G Ehlers, <br/><br/>
Petrology   : igneous, sedimentary and metamorphic 

 - San Francisco   : W. H. Freeman and Company,  1980. 
 - xvi,732p.   : ill.   : 24cm. 
<br/><br/>includes bibliographic reference and indexes 
<br/><br/><label>ISBN: </label>0716712792 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petrology
<br/><br/><label>LC Class. No.: </label>GY QE431.2.E38