Spencer, Henry Cecil,    1903- <br/><br/>
Technical drawing problems, series 2 /  
by Henry Cecil Spencer, Iv an Leroy Hill and John Thomas Dygdon. 
 - 4th ed. 
 - New York :    Macmillan Pub. Co.    1980. 
 - v. :    illus. ;    28 cm. 
<br/><br/><label>ISBN: </label>0024143308 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Mechanical drawing -- Problems, exercises, etc.
<br/><br/><label>Dewey Class. No.: </label>Q 604.2 SPE