000 00313nam a2200145Ia 4500
100 _aAgarwal, J. P.
020 _a978-81-923137-9-5
365 _b750
942 _cBK
654 _a
245 _aModern educational technology
260 _aNew Delhi
_bBlack Prints
_c2013
082 _a371.33
300 _a246
999 _c394980
_d394980
041 _aeng