Houghton, P. S. <br/><br/>
Gears, spur, helical bevel and worm 

 - 1st ed. 
 - London  Technical Press  1952 
 - xvi,391 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gearing
<br/><br/><label>Dewey Class. No.: </label>621.833  / H8384