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结果 101-110 的 166
Biological control of unwanted aquatic plants
1974
Weber, E. (Bundesanstalt fuer Wasserbiologie und Abwasserforschung, Vienna (Austria))
Effects of certain activities in agriculture on the pollution of surface waters and measures for their abatement
1974
Buie, E.C. (Dept. of Agriculture, Washington, D.C. (USA). Soil Conservation Service)
Pollution, congestion, and nuisance
1974
Dick, Daniel T.
The application of statistical techniques to river quality management
1974
Oxley, N.C. (EASAMS Ltd., Camberley, Surrey (UK)) | Wallis, B.F.J.
The Huntingdon Research Centre Pasveer oxidation ditch: six years on
1974
Spring, B.J. (Department of Building and Maintenance, Huntingdon Research Centre, Huntingdon (UK)) | Briscoe, E.R.E.
Quality control in river management of the Bristol Avon
1974
Ingham, G.S.N. (Bristol Avon River Authority, Bristol (UK))
Effects of soil erosion in agricultural and forest areas of Austria
1974
Schulz, K. (Bundesversuchsinstitut fuer Kulturtechnik und technische Bodenkunde, Petzenkirchen (Austria))
Possibility of herbicide detection in water by means of the greening inhibition of etiolated and excised cucumber cotyledons
1974
Decleire, M. | Cat, W. de | Bastin, R. (Ministerie van Landbouw, Tervuren (Belgium). Instituut voor Scheikundig Onderzoek)
