000 00275nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aInterchange
260 _aOntario Inst. for Studies in Education
_bCanada
_c1 Jan-31 Dec,1989
362 _a20-20
_b01-Apr
942 _2ddc
_cJ
999 _c189373
_d189373