000			003810000a22001450004500
245			_aPrinciples of water quality control
100			_aTebbutt, T.H.Y.
260			_aOxford _bPergamon Press _c1971
300			_aix, 179p. : ill., tables
440			_aThe Commonwealth and International Library
020			_a080161286
080			_a628.16 _bT4
041			_aEN
942			_cBK
999			_c95772 _d95772