000 00288nam a2200121Ia 4500
003 LDD
040 _cLDD
041 _aen
245 0 _aJournal of Chemical Education
260 _aDirectorate of Chemical Education
_bEaston
_c1 Jan-30 Apr,1998
362 _a75-75
_b01-Apr
942 _2ddc
_cJ
999 _c187827
_d187827