000
00267nam a2200121Ia 4500
008
220201s1991 xx 000 0 eng d
100
_a
CHANG RAYMOND
245
0
_a
CHEMISTRY
250
_a
4
260
_a
NEW YORK
_b
MCGRAW HILL
_c
1991
300
_a
1065
942
_2
ddc
999
_c
91475
_d
91475