Ludwig, Oswald A. <br/><br/>
Metalwork :  technology and practice. / 
Oswald A. Ludwig, Willard J. McCarthy, Victor E. Repp. 
 - 6th ed. 
 - Bloomington, Ill. :  McKnight,  1975. 
 - xii, 658 p. :  ill. 
 - McKnight career publication .
<br/><br/><label>ISBN: </label>0873451171 
<br/><br/><label>LCCN: </label>93034213     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Machine-shop practice.<br/>Metal-work