Processes in physical geography 
R. D. Thompson... (et al.) 
 - London  Longman Group  1986 
 - 380 p. : ill. ; 25 cm. 
<br/><br/>p. 358-367 
<br/><br/><label>ISBN: </label>058230136X 
<br/><br/><label>LCCN: </label>84-25005 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical geography