000 00317nam a2200133Ia 4500
008 180712s9999 xx 000 0 und d
020 _a9231020528
082 _a371.6
_bUNi
100 _aUNESCO
245 _aNew trends in school science equipment
260 _aParis
_bUNESCO
_c1983
300 _a161 p.
942 _cS
999 _c29044
_d29044