Houghton, P.S. <br/><br/>
Gears, Spur, Helical, Bevel and Worm 

 - London:  Technical Press  1952 
 - xvi, 390p. :   il; 24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Transmisión Engranajes