Spencer, Henry Cecil. <br/><br/>
Engineering graphics problems / 
Henry Cecil Spencer, Ivan Leroy Hill and Robert Olin Loving. 
 - 2nd ed. 
 - London :  Collier Macmillan,  c 1975. 
 - various pages :  ill. ;  28 cm. 
 - Series 1. .
<br/><br/>318  318 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering graphics.
<br/><br/><label>Dewey Class. No.: </label>744.422 / S83e