000 00322nam a2200145Ia 4500
008 131017s9999 xx 000 0 und d
082 _a540 SAX / C
100 _a"Ritcha Sexena;"
245 _aChemistry R.S
250 _a12
260 _bYoung Man
_c1990
_aDELHI
300 _a431
650 _aCHEMISTRY
942 _cBK
999 _c31073
_d31073