The new encyclopedia Britannica  macropedia : knowledge in depth : vol. 20 : geomorphic-immunity 

 - 15. ed. 
 - Chicago  University of Chicago  1992 
 - 789 p.  28 cm. 
<br/><br/><label>ISBN: </label>0852295537 
<br/><br/><label>Dewey Class. No.: </label>032  / NEW