000
00311nam a2200121Ia 4500
008
220201s1991 xx 000 0 eng d
041
_a
ENG
100
_a
W.H.O
245
0
_a
GUIDE LINE FOR DRINKING WATER QUALITY
260
_a
LONDON
_b
THAMES AND HUDSON PUBLISHING COMPANY
_c
1991
300
_a
130
942
_2
ddc
999
_c
60726
_d
60726