Barnwell, George W., <br/><br/>
The new encyclopedia of machine shop practice;  a guide to the principles and practice of machine shop procedure /  
edited by George W. Barnwell ... 
 - New York :   W.H. Wise & Co., inc.,  1941. 
 - viii, 568 p. ;   illus., tablas.  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>TALLER MECANICO
<br/><br/><label>Universal Decimal Class. No.: </label>621 (031)