Campbell, Harry L. <br/><br/>
The working, heat treating, and welding of steel :  supplemented with a series of laboratory assignments / 
Harry L. Campbell. 
 - 2nd ed. 
 - New York :   John Wiley & Sons,  c 1940. 
 - ix, 230 p. :  ill. ;  24 cm. 
<br/><br/> icludes index. 
<br/><br/>342  342 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Metallurgy.
<br/><br/><label>Dewey Class. No.: </label>669.18 / C152w