Houghton, P S <br/><br/>
Gears: spno, belical, bevel internal, epicyclic and worm 

 - 2nd ed. 
 - London  Technical press  1970 
 - Various   
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<br/><br/><label>Subjects--Index Terms: </label>spno gears  belical gears  bevel gears  epicyclic gears  work gears 
<br/><br/><label>Dewey Class. No.: </label>621.38