Porter, Harold W. <br/><br/>
Machine shop :  operations and setups / 
[by] Harold W. Porter, Orville D. Lascoe [and] Clyde A. Nelson. 
 - 3rd ed. 
 - Chicago :  American Technical Society,  1968. 
<br/><br/> Additional imprint on label, London, The Technical Press. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Machine shops -- Management.--Machine shops -- Management.<br/>Machine-shop practice.