000			00464nam a22001337a 4500
008			230622b |||||||| |||| 00| 0 eng d
040			_aNational Science Library _cNational Science Library
080			_a628.54.004.5 _bJ7
245			_aSymposium on trade wastes _c/ Held at the University of Birmingham Edgbaston on 9th April, 1957
260			_aMidland: _bThe Institute of Sewage Purification, _c1957
300			_a112p.
650			_aSymposium
942			_2udc _cSYM
999			_c46448 _d46448