000 00358nam a2200145Ia 4500
020 _a8172893000
082 _b3478
_a500
100 _a"Aggerwal, Aashish"
245 0 _aBasic concepts of science and technology
260 _bAmbar Parkshan
_aNEW DELHI
_c2011
300 _a196
944 _cR
999 _c50934
_d50934