Hoffer, Robin L. <br/><br/>
Physical geology / 
Robin L. Hoffer. 
 - Springhouse, Pennsylvania  Springhouse Corp.  c1995. 
 - viii, 151 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references (p. 147) and index. 
<br/><br/>
<br/><br/><label>ISBN: </label>087434607X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical geology.
<br/><br/><label>Dewey Class. No.: </label>Cir 550 H67 1995