000			00363nam a2200169Ia 4500
001			17204
008			170722s9999 xx 000 0 und d
100			_aBok, Bart J.
245			_aMilky way /
250			_a3rd ed.
260			_c1957.
653			_aAstronomy
653			_aMathematics
653			_aMilky Way
700			_aBok, Priscilla F.
942			_cGEN
999			_c68208 _d68208