1. Baker, J. L., 1983. Agricultural areas as nonpoint sources of pollution. In Overcash, M. R. & J. M. Davidson (eds), Environmental impact of nonpoint source pollution. Ann Arbor Science, Ann Arbor, MI.: 275?310.
2. Baker, J. L. & H. P. Johnson, 1983. Evaluating the effectiveness of BMP's from field studies. In Bailey, G. W. & F. W. Schaller (eds), Agricultural management and water quality. Iowa State Univ. Press, Ames, Iowa: 281?304.
3. Benke, A. C., G. E. Willke, F. K. Parrish & D. L. Stites, 1981. Effects of urbanization on stream ecosystems. Georgia Institute of Technology. ERC 07-81, 64 pp.
4. Besch, W. K., I. Schreiber & D. Herbst, 1977. Der Hydropsyche ? toxizitatstest, erprobt an Fenethcarb. Schweiz. Z. Hydrol. 39: 69?85.
5. Cole, R. H., R. E. Frederick, R. P. Healy & R. G. Rolan, 1984. Preliminary findings of the priority pollutant monitoring project of the National Urban Runoff Program. J. Wat. Pollut. Cont. Fed. 56: 898?908.