000 00294pam a2200109a 44500
082 _a542
_bC42C3 V.1
100 _aChemical Education Material Study
245 1 _aCHEMISTRY
_bAN EXPERIMENTAL SCIENCE
260 _a
_bChemical Education Material Study
_c1962
964 _gCIRC
997 _a17329 C
999 _c411761
_d411761