Singh, Onkar. <br/><br/>
Frontiers in Environmental Geography /  
edited by Onkar Singh, Prithvish Nag, V.K.Kumar, Jagadish Singh. 
 - 1st ed. /  
 - New Delhi :   Concept Publishing Company ,   1993 
 - 436p :  
<br/><br/><label>ISBN: </label>81-7022-462-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geogrpahy
<br/><br/><label>Dewey Class. No.: </label>U47  / N3