Jefferies, H. B. <br/><br/>
Metrication in workshop practice 
[by] H. B. Jefferies 
 - Oxford,  Blackwell  1971. 
 - vi, 202 p.  illus.  24 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>063112800X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Machine-shop practice.<br/>Metric system--Great Britain