000			00422nam a2200157Ia 4500
008			180612s9999||||xx |||||||||||||| ||und||
020			_a875531318
041			_aen
082			_a628.1
100			_aAMERICAN HEALTH ASSOCIATION
245		0	_aStandard methods for the examination of water and was
250			_a6th Ed.
260			_bWashinton. American Health as _csociation 1985
300			_a(xLix),126
942			_cPR
999			_c41147 _d41147