000 00307nam a2200133Ia 4500
008 160316s1990 xxu||||| |||| 00| 0 eng d
020 _a
100 _aMukhopandhyay,M,Ed
245 _aEducational Technology
250 _a
260 _aNEW DELHI
_bSTERLING PUBLISHERS
_c1990
300 _a225
700 _a
_a
999 _c4323
_d4323