Ford , D.C.  . <br/><br/>
Karst geomorphology and hydrology /  
by D.C. Ford and P.W. Williams. 
 - UK :   Unwin Hyman ,   1999 
 - 601p ;  
<br/><br/><label>ISBN: </label>0-04-551106-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography
<br/><br/><label>Dewey Class. No.: </label>U21  / N9