Wijewantha, Ronald T <br/><br/>
Report of the National Metrication Board 

 - Colombo  National Metrication Board  1972 
 - 154 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>METROLOGY<br/>SLC<br/>Social Sciences<br/>STANDARDIZATION
<br/><br/><label>Dewey Class. No.: </label>389.150202  / REP