000
00288nam a2200121Ia 4500
003
LDD
040
_c
LDD
041
_a
en
245
0
_a
Journal of Chemical Education
260
_a
Directorate of Chemical Education
_b
Easton
_c
1 Jan-30 Apr,1998
362
_a
75-75
_b
01-Apr
942
_2
ddc
_c
J
999
_c
187827
_d
187827