Ord, H. <br/><br/>
Engineering drawing and materials for mechanical engineering technicians / 
H. Ord. 
 - 4th ed. 
 - London:   English University Press,   1974.  
 - 2 v. :  ill. ;  25 cm. 
 - General technical series .
<br/><br/><label>ISBN: </label>0340192666 0340194227 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanical drawing
<br/><br/><label>Dewey Class. No.: </label>604.2