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

 - 6th ed. 
 - Dubuque  Wm. C. Brown,  1993. 
 - xiv, 537 p. :  ill. (col.) ;  28 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0697138070 0697138062 
<br/><br/><label>LC Class. No.: </label>QE28.2  / .P73 1993