000 00261nam a2200097Ia 4500
008 160710s1956 xx 000 0 und d
100 _aCHEMICAL ABSTRACTS
245 _aCHEMICAL ABSTRACTS, NOV NO. 21
260 _bAMERICAN CHEMICAL SOICETY
_c1956
942 _2ddc
_cB
999 _c40041
_d40041