Hans Raj <br/><br/>
Environmental economics for sustainable development  some issues in modeling,     accounting and valuation 
Pushpam Kumar. 
 - New Delhi  Manak Publication  2001 
 - x, 118p., 22cm. 
<br/><br/><label>ISBN: </label>81-7827-018-6. 
<br/><br/><label>Dewey Class. No.: </label>333.72  / P97E