International encyclopaedia of sustainable development /  
P.C Sinha, 
 - New Delhi :   Anmol Pub.,   1998 
 - VOL..  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>International encyclopaedia
<br/><br/><label>Dewey Class. No.: </label>338.903  / INT 1998