000			01372nam a2200301 a 4500
008			111222s1997 enkab b 001 0 eng d
010			_a98123030
020			_a0419229108
040			_aDLC _cDLC _dDLC _dBD-KhUET
082	0	0	_a363.7394 _221
245	0	0	_aWater pollution control : _ba guide to the use of water quality management principles / _cedited by Richard Helmer and Ivanildo Hespanhol.
250			_a1st. ed.
260			_aLondon ; _aNew York : _bE & FN Spon, _c1997.
300			_axvi, 510 p. : _bill., maps ; _c24 cm.
500			_a"Published on behalf of UNEP, United Nations Environment Program, Water Supply & Sanitation Collaborative Council, World Health Organization."
504			_aIncludes bibliographical references and index.
650		0	_a Water quality management.
650		0	_a Water _2Purification.
700	1		_aHelmer, Richard, _d1943-
700	1		_aHespanhol, Ivanildo.
710			_aUnited Nations Environment Programme.
710	2		_aWater Supply and Sanitation Collaborative Council.
710	2		_aWorld Health Organization.
856			_3Publisher description _uhttp://www.loc.gov/catdir/enhancements/fy0651/98123030-d.html
999			_c2435 _d2435
952			_p3010030198 _40 _00 _bKUETCL _10 _o363.7394 WAT _d2003-06-15 _t1 _70 _cGEN _2ddc _yBK _aKUETCL