Marshak Stephen <br/><br/>
Essentials of Geology/ 
Stephen Marshak. 
 - 3rd ed. 
 - New York:  W. W. Norton & Company,  2009. 
 - 518 p.: 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9780393932386 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology
<br/><br/><label>LC Class. No.: </label>9780393932386