Annual survey of industries 2011:  Final Report/  English. 
Department of Census and Statistics. 
 - Colombo:  Department of Census and Statistics,  2013. 
 - viii, 132p.:  30cm. 
<br/><br/><label>ISBN: </label>9789555778190 
<br/><br/><label>Dewey Class. No.: </label>338.095493021  / DEP