Colvin, Fred H. <br/><br/>
Gear Cutting Practice: Methods of Producing Gears for Commercial Use 

 - 3rd ed. 
 - New York  McGrawhill  1950 
 - xii, 532 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gearing
<br/><br/><label>Dewey Class. No.: </label>621.834  / C7272