Suriyakumaran, C. <br/><br/>
The Methodology of Enviroment and development management. 

 - 1st Ed. 
 - Sri lanka :  A CRDS Special publication,   1993. 
 - vi, 239 p. 
<br/><br/><label>ISBN: </label>9559558102 
<br/><br/><label>Dewey Class. No.: </label>658  / SUR