000 00418nam a2200157Ia 4500
008 180323s9999 xx 000 0 und d
082 _aNot covered syllabus
100 _a   Aggarwal, J.C
245 0 _aElementary educational technology
250 _a1st
260 _aNew Delhi
_bIndian Pub.House
300 _aNot covered syllabus
500 _a428
650 _aEducation - elementary - techn
942 _cBOOK
999 _c6235
_d6235