Plummer, Charles C., <br/><br/>
Physical geology / 

 - 6th ed. 
 - Dubuque, Iowa :  Wm. C. Brown,  c1993. 
 - xiv, 537 p. :  ill. (some col.) ;  28 cm. 
<br/><br/><label>ISBN: </label>0697138070 (pbk.) 0697138062 (hard) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical geology.
<br/><br/><label>Dewey Class. No.: </label>550 BRO 1993 A027 Or.