Thorn, Colin E. <br/><br/>
An Introduction to Theoretical Geomorphology 
/by Colin E. Thorn 
 - London:  Kluwer Academic Publishers  1988. 
<br/><br/><label>ISBN: </label>9780045511181 
<br/><br/><label>Dewey Class. No.: </label>551.4  / THO/A