000 00282nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a541.12.038
_bJOH
100 _aJohnston, David
245 0 _aChemistry and the environment
260 _aPhiladelphia
_bSaunders
_c1973
942 _cBK
999 _c26444
_d26444