A Report on a reconnaissance survey of the resources of the walawe ganga basin Ceylon 

 - Colombo  Canada-Ceylon Colombo plan project  1960 
 - xiv, 359 p. 
<br/><br/> Include tables, appendix, 
<br/><br/><label>ISBN: </label>82833 
<br/><br/><label>Dewey Class. No.: </label>333.72  / REP