SI the international system of units 
/National Physical Laboratory, translation approved by the international bureau of weights and measures of its publication 'Le systeme  international d'unites  
 - London:   National Physical Laboratory,  1973  
 - v, 47p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>International systems 
<br/><br/><label>Subjects--Index Terms: </label>International bureau  
<br/><br/><label>Universal Decimal Class. No.: </label>389.16(100)  / L3