000 00269nam a2200097Ia 4500
008 160710s1957 xx 000 0 und d
100 _aCHEMICAL ABSTRACTS
245 _aCHEMICAL ABSTRACTS, DEC ( INDEX ) NO.1
260 _bAMERICAN CHEMICAL SOICETY
_c1957
942 _2ddc
_cB
999 _c40043
_d40043