000 00383nam a2200169Ia 4500
008 180626s9999 xx 000 0 und d
020 _a8171813836
082 _a540 C392e
100 _aChattopadhyay, Deepanwita
245 0 _aEssential chemistry
260 _aNew Delhi
260 _bLearners Press
260 _c1995
300 _a176
650 _aChemistry
942 _cBK
999 _c34167
_d34167