000 00317nam a2200121Ia 4500
008 240531s9999 xx 000 0 und d
020 _a0 7501 0071 0
082 _a507 COL
100 _aCollis Margaret.
245 0 _aUsing the environment 3 taking problems part 2
260 _aMacdonard Educ
_b1974
942 _cANF
999 _c304725
_d304725