Spencer, Henry Cecil <br/><br/>
Technical drawing problems / 
Henry Cecil Spencer; Ivan Leroy Hill and John Thomas Dygdon. 
 - 4th ed. 
 - New York,   Macmillan Pub. Co.    ©1980. 
 - Various p.:  27 cm. 
 - Technical drawing problems  series 2 .
<br/><br/>
<br/><br/><br/>English 
<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>604.2/SPT