00394nam a2200133Ia 4500003000900000008004100009040001600050080001700066245006100083260003800144300001600182650003300198700002900231IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a520.2bAMA-3 0aAmateur telescope makingbpt. 3cedited by A. G. Ingalis  aU.S.A.bScientific Americanc1953  aviii, 646p.  aTelescope, Telescope making.  aIngalis, Albert. G., ed.