000 00358nam a2200145Ia 4500
020 _a8172893027
082 _b3444
_a500
100 _a"Aggarwal, Aashish"
245 0 _aBasic concepts of science and technology
260 _bAmbar Parkshan
_aNEW DELHI
_c2011
300 _a267
944 _cR
999 _c50925
_d50925