Anderton, Pamela. <br/><br/>
Changing to the metric system;  conversion factors, symbols and definitions 
[by] Pamela Anderton and P. H. Bigg. 
 - 3d ed. 
 - London,  H.M. Stationery Off.,  1969. 
<br/><br/> At head of title: Ministry of Technology, National Physical Laboratory. 
<br/><br/>Bibliography: p. 32-33. 
<br/><br/><label>ISBN: </label>0114800030  4/6 
<br/><br/><label>LCCN: </label>79513380 //r85 
<br/><br/><label>Nat. Bib. No.: </label>B*** 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Metric system.
<br/><br/><label>LC Class. No.: </label>QC91  / .A58 1969 
<br/><br/><label>Dewey Class. No.: </label>389/.152/0212