Ehlers, Ernest G. <br/><br/>
Petrology :  igneous, sedimentary, and metamorphic / 
Ernest G. Ehlers, Harvey Blatt. 
 - San Francisco :  Freeman,  c1982. 
 - xvi, 732 p. :  ill. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Petrology.