Conservation and economic evaluation of biodiversity 
P. Pushpangadan,  K. Ravi and  V. Santhosh 
 - New Delhi  Oxford & IBH Pub.  1997 
 - 2 v. 
<br/><br/><label>ISBN: </label>81-204-1184-6  81-204-1185-4  Rs. 1,950 per set 
<br/><br/><label>Subjects--Index Terms: </label>Biodiversity conservation Ecological economics