00450nam a2200157Ia 4500003000900000008004100009040001600050080002000066245005500086260003300141300002300174650001400197650004100211650001700252700002300269IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a047.1:52bVIA-2 0aVistas in astronomybvol. 2cedited by Arthur Beer  aOxfordbPergamon Pressc1956  a[various pagings.]  aAstronomy  aAstronomy and Astrophysics Thesaurus  aAstrophysics  aBeer, Arthur., ed.