The earth,s Changing surface 
M. J. Bradshaw, A. J. Abbott and A. P. Gelsthrope 
 - Great Britain  he English Language Book Society  c1978 
 - 336p. 
<br/><br/><label>ISBN: </label>0-340-25000-3 
<br/><br/><label>Dewey Class. No.: </label>550  / B729