000 00344nam a2200133Ia 4500
100 _aWHO
020 _a92-4-154514-3
654 _aHealth & Hygiene
942 _cBK
245 _aGuidelines for drinking - water quality : addendum to volume I recommendations
260 _aauth., Geneva
_c1998
082 _a614.772 W.H.O.
300 _aviii,36p
999 _c25980
_d25980