00566nam a2200169Ia 4500003000900000008004100009020001800050040001600068080001800084110004600102245010900148260004600257300002300303650001300326650004100339650001600380IN-BaIIA211028s9999    xx            000 0 eng d  a0-11-886914-0  cIIA Library  a05952bAAA-83  aUnited States. Government Printing Office 4aThe astronomical almanac for the year 1983cU.S.Government Printing Office                                aWashingtonbU. S. Naval Observatoryc1982  a[various pagings.]  aAlmanacs  aAstronomy and Astrophysics Thesaurus  aEphemerides