000
00261nam a2200121Ia 4500
001
58609
008
220811s1993 ###||||g |||| ||spa d
082
_a
QV633
_b
W927B
245
0
_a
Benzene
264
_c
1993
942
_c
BK
_2
ddc
035
_a
QV633 -W927B-Benzene-
999
_c
6509
_d
6509