000 00396nam a2200169Ia 4500
008 180323s9999 xx 000 0 und d
020 _a9.7893859602e+012
082 _a371.396
100 _aBhatnagar,Suresh
245 0 _aLearning & Teaching
250 _aE
260 _aMeerut
_bR.Lall Book
_c2017
300 _a694
500 _a5545
650 _aEducation-Learning
942 _cBOOK
_029
999 _c11352
_d11352