000 00640nam a2200205zi 4500
005 20220228104804.0
008 s1989 dgb eng0 08
020 _a0117522627
035 _aMX001000537664
050 _aTD430
_bG85
245 0 0 _aGuidance on safeguarding the quality of public water supplies
264 1 _aLondon :
_bHmso,
_c1989
300 _a108 pƔginas
500 _aA la cabeza de la portada: department of the environment welsh office
650 _aAgua
_xPurificaciĆ³n
336 _atexto
_2rdacontent
337 _asin medio
_2rdamedia
338 _avolumen
_2rdacarrier
999 _c18370
_d18370