Walton, Harry. <br/><br/>
The how and why of mechanical movements :  exactly how machines work : engines, turbines, transmissions, brakes, clutches, rockets, atomic generators, gyroscopes, guidance systems / 
by Harry Walton ; illustrated by Ray Pioch. 
 - New York :  Popular Science Publishing Company,  1968. 
 - 297 p. :  ill. ;  26 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Machinery.