000 00261nam a2200121Ia 4500
008 211209s1975 xx 000 0 und d
041 _aeng
082 _a540 N71 JOH
100 _aJOHN H
245 _aCOMPREHENSIVE CHEMISTRY
260 _c1975
300 _a922
999 _c13200
_d13200