Suriyakumaran <br/><br/>
The Methodology of Enviroment and development management 
C.Suriyakumaran 
 - Sri lanka  A CRDS Special publication  1993 
 - 239 
<br/><br/><label>ISBN: </label>9559558102 
<br/><br/><label>Dewey Class. No.: </label>658  / SUR