000 00361nam a22001457a 4500
020 _a8170247233
082 _a371
_bMUK.E
084 _2Colon Classification
100 _aMukhopadhyay, M
245 _aEducational technology /
_cedited by M. Mukhopadhyay
260 _aNew Delhi :
_bAPH,
_c1996.
300 _a172p. :
650 _aEducational
942 _cREF
999 _c619865
_d619865