000			00758cam a2200241 4500
001			u237086
003			SIRSI
008			950911b1951 a r eng
040			_cMX-MeUAM
041	1		_aeng
050		4	_aTD430 _bA54 1951
110	1		_aAmerican Water Works Association.
245	1	0	_aWater quality and treatment / _ca manual prepared by the American Water Works Association.
250			_a2a.
260			_aNew York, N. Y. : _bAmerican Water Works, _c1951.
300			_a451 p. ; _c 24 cm. + _e 2 folletos.
500			_aContiene dos folletos : water quality and treatment, filtration.
504			_aBibliografia: p. 425-431.
690			_aAgua _xPurificacion.
690			_aAgua _xAbastecimiento E.U.A.
596			_a2
942			_cLIBRO
999			_c92632 _d92632