Amitava Mitra <br/><br/>
Environment and nature - based tourism:  an endeavour at sustainability / 
by Amitava Mitra and Kunal Chattopadhyay 
 - New Delhi :  Kanishka,  2003. 
<br/><br/><label>ISBN: </label>8173915679 
<br/><br/><label>Subjects--Index Terms: </label>Sustainable Development