Levens, A. S.  1900-. <br/><br/>
Problems in engineering drawing :  series 5 
A. S. Levens and A. E. Edstrom. 
 - New York :  McGraw-Hill book company, inc.,  c1960. 
 - various pages :  diagrs. ;  30 cm. 
<br/><br/>
<br/><br/><br/>english 
<br/><br/><label>LCCN: </label>45005046  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanical drawing.
<br/><br/><label>LC Class. No.: </label>T353  / .L63 
<br/><br/><label>Dewey Class. No.: </label>744.422076/LEP