000 00402nam a2200169Ia 4500
020 _a888780091041K
040 _cPK-LaCSN
082 _bMEL
_a540
100 _aMelina, Suzanne
245 0 _aElements mixtures and reactions
260 _bEEW
_aSingapore
_c1992
300 _a32
490 _aScience Workshop
942 _2ddc
_cBK
999 _c243301
_d243301