Blackburn, R. G. <br/><br/>
Sheet metal work  advanced calculations 
R. G. Blackburn. 
 - London  E. Arnold   c1964. 
 - vii, 151p.  ill.;  29 cm. 
<br/><br/><label>ISBN: </label>57045965 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sheet-metal work