000			00425cam a2200133 a 4500
082	0	0	_a574.9 ECO
245	0	0	_aEcological assessments of effluent impacts on communities of indigenous aquatic organisms :
260			_aPhiladelphia, Pa. (1916 Race St., Philadelphia 19103) : _bASTM, _cc1981.
300			_a333 p. : _bill. ;
650		0	_aAquatic organisms
700	1		_aBates, J. M.
700	1		_aWeber, Cornelius I.
942			_cBK
999			_c1757 _d1757