000 00286nam a2200121Ia 4500
008 220201s1986 xx 000 0 eng d
082 _a4
_bELL
100 _aEllingham,D.W.W.
245 0 _aHand Book of Primary Education and Computing .
260 _c1986
300 _a156
942 _2ddc
999 _c7020
_d7020