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999 _c148209
_d148208
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008 180712s9999 xx 000 0 und d
020 _a9241541709
041 _aEN
082 _a363.123
_bWOR
_223
110 _983692
_aWorld Health Organization
245 _aGuidelines for Drinking-Water quality :
_bDrinking-water quality control in small-community supplies
260 _aGeneva:
_bWorld Health Organization;
_c1985.
300 _a(v.3-viii, 120 p.), 3 volumes available
500 _aIncludes bibliography.
509 _aNS
650 _aWHO Guidelines
942 _cPR