000 00338nam a2200145Ia 4500
008 170101s1972 xx 000 0 und d
082 _a540.07 U-4N
100 _aUnesco
245 0 _aNew trends in chemistry teaching
260 _bParis
_c1972
300 _a325p
650 _aBIOCHEMISTRY
653 _aBIOCHEMISTRY
942 _2ddc
_cB
999 _c50244
_d50244