000 00272nam a2200121Ia 4500
001 4454
008 190520s9999 xx 000 0 und d
020 _a439051495
100 1 _aSimon, Seymour
245 1 0 _aComets, Meteors, and Asteroids
260 _bCollins
942 _cCA
999 _c16195
_d16195