Townsend, Clarence Ellsworth. <br/><br/>
Introductory mechanical drawing /  
Clarence E. Townsend and Stephen F. Cleary. 
 - London :   J. Wiley & sons, inc.,  1930. 
 - 2 p.l., iii-xi, 302 p :   illus., diagrs ;   24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanical drawing
<br/><br/><label>LC Class. No.: </label>SPE 4576