000			00412nam a2200157Ia 4500
008			230711s9999||||xx |||||||||||||| ||und||
041			_aENG
082			_a624 _bWO-G
100			_aWorld Health Organisation
245		0	_aGuideliness for drinking water quality V-I
250			_a1st
260			_c1984 _aNew Delhi _bWorld Health Organisation Geneva
300			_a130
650			_aCivil Engineering
942			_cBK
999			_c2090 _d2090