Nigam, Satish Chandra <br/><br/>
Ecotourism and Sustainable development 
/ by Satish Chandra Nigam 
 - New Delhi:  Rajat Publications,  2006. 
 - v, 283p. ; 18cm. 
<br/><br/><label>ISBN: </label>8178802600 
<br/><br/><label>Dewey Class. No.: </label>910  / NIG/E