Nagel, Rob <br/><br/>
UXL encyclopedia of landforms and o the geologic features / 
Rob Nagel 
 - Detroit :  Thomson Gale,  2004       
 - 3 v. 
<br/><br/><label>ISBN: </label>0787676705 
<br/><br/><label>LC Class. No.: </label>R GB 406 N147u 2004