000 00405nam a2200157Ia 4500
008 170901s1990 xx 000 0 und d
082 _a371.3
_bC28E
100 _aChand, Tara
245 0 _aEducational Technology
260 _aNew Delhi
_bAnmol Publication Pvt LTD.
_c1990
300 _a416
650 _aEducation
650 _aSocial sciences
653 _aEducational technology
942 _2ddc
_cBK
_01
999 _c4219
_d4219