000			00385nam a2200157Ia 4500
005			20170913112814.0
008			160615s9999 xx 000 0 und d
100			_aASTRONOMICAL ALMANAC
245			_aAstronomical almanac for the year 1991
260			_aHMSO _c1991
300			_aix p. + irreg.
521			_aBasement
942			_cBK _2udc
999			_c19399 _d19399