000 00399nam a2200169Ia 4500
008 180323s9999 xx 000 0 und d
020 _anil
082 _a371.3
100 _a   RAO,V.K.
245 0 _aEducational technology
250 _a1st
260 _aNew Delhi
_bIndian Pub.House
300 _aNot covered syllabus
500 _a920
650 _aEducation - technology
942 _cBOOK
999 _c6727
_d6727