Amateur telescope making  pt. 3 
edited by A. G. Ingalis 
 - U.S.A.  Scientific American  1953 
 - viii, 646p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Telescope, Telescope making.
<br/><br/><label>Universal Decimal Class. No.: </label>520.2  / AMA-3