00571nam a2200169Ia 4500003000900000008004100009020001700050040001600067080001900083110004600102245010900148260005100257300002300308650001300331650004100344650001600385IN-BaIIA211028s9999    xx            000 0 eng d  a0-11-88694-5  cIIA Library  a059:52bAAL-90  aUnited States. Government Printing Office 4aThe Astronomical Almanac for the year 1990cU.S.Government Printing Office                                aU.S.A.bU. S. Government Printing Officec1989  a[various pagings.]  aAlmanacs  aAstronomy and Astrophysics Thesaurus  aEphemerides