000 00344nam a2200133Ia 4500
005 20170531145244.0
008 160615s9999 xx 000 0 und d
245 _aAstronomical almanac for the year 1992
_cASTRONOMICAL ALMANAC
260 _bHMSO
_c1991
300 _aix p. + irreg
942 _cBK
_2udc
999 _c18041
_d18041