Karst :  important karst regions of the Northern Hemisphere / 
edited by M. Herak and V. T. Stringfield. 
 - Amsterdam :  Elsevier North-Holland,  1972. 
 - xiv, 551 p. :  ill., maps. ;  25 cm. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>0444408495 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Karst--Europe.<br/>Karst--North America.