000 00288nam a2200133Ia 4500
999 _c7789
_d7789
020 _a0442224443
100 _aLaurence W Fredrick
245 _aAstronomy
250 _a10
260 _c1976
_bD.VAN NOSTRAND CO.
_aNew York
300 _axvi+559
700 _aRobert H Baker
942 _cREF