000 00287nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aEducational Technology
260 _aEducational Technology Publications
_bNew Jersey
_c1 Jan-30 Jun,1993
362 _a33-33
_b01-Jun
942 _2ddc
_cJ
999 _c190419
_d190419