000 00331nam a2200145Ia 4500
020 _a81-7181-385-2
082 _b1158
_a500
100 _a"Chattopadhyay,Deepanwita"
245 0 _aEssential Science
260 _bCollins
_c2005
300 _a176
944 _cBK
999 _c377171
_d377171