Report of the national metrication board. 

 - Colombo :  National MetricationBoard ,  1972 
 - 154p. :  ill. ;  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Weights and measures<br/>Ceylon--Sri Lanka
<br/><br/><label>Dewey Class. No.: </label>389.1  / NMB