000			00463cam a22001571 4500
082			_a628.1 _bBRA _cL-23, P-15
100	1		_aWilliams, George Bransby,
245	0	4	_aThe purification of water supplies, _cby George Bransby Williams.
250			_a2d ed. (rev.)
260			_aLondon, _bChapman & Hall ltd., _c1946.
300			_a95 p. _bdiagrs. (1 fold.) _c22 cm.
500			_a"First published 1944."
650		0	_aWater _xPurification.
650		0	_aMCE
942			_cBK
999			_c8256 _d8256