00561nam a2200169Ia 4500003000900000008004100009040001600050100002300066245011100089260003000200650001800230650002600248650001600274942000700290999001500297952007900312IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  aBaker, J.G.912679 0aOptical systems for astronomical photographycJ. G. Baker                                                   bScientific Americanc1949  aAstronomy980  aOptical systems93247  aphotography  cBK  c9090d9090  00104070aBANbKAVcGENd1987-08-18l0p9988r2021-11-05w1987-08-18yBK