000 00506nam a2200157Ia 4500
008 220514s9999||||xx |||||||||||||| ||und||
020 _a92 4 154580 1
050 _aWA 820 .W46 2003
110 _aWorld Health Organization(WHO)
245 0 _aGuidelines for safe recreational water enviroments: Coastal and Fresh waters
260 _aGeneva
_bWorld Health Organization(WHO)
_c2003
300 _axix,220p.
440 _aOne
650 _asafe waters, recreation, coastal and fresh waters
942 _2lcc
_cBK
999 _c5487
_d5487