Parr, Robert E. <br/><br/>
Principles of mechanical design/ 
Robert E. Parr 
 - New York:  McGraw-Hill,  c1970 
 - xviii, 383 p.:  ill., plates;  23 cm. 
 - McGraw-Hill technical education series .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> $ 17.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanical drawing<br/>Geometry, descriptive<br/>Engineering drawings
<br/><br/><label>Dewey Class. No.: </label>620.04