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1998
Trew, D. O., Byrtus G., Neilson R. D., Saffran K. A., & Anderson A. - M. (1998).  Impacts of agriculture on surface water quality in Alberta. CAESA Canada-Alberta Environmentally Sustainable Agriculture Agreement . 198 pages .
Trew, D. O., Neilson R. D., Anderson A. - M., Saffran K. A., & Byrtus G. (1998).  Impacts of agriculture on surface water quality in Alberta. CAESA Canada-Alberta Environmentally Sustainable Agriculture Agreement . Abstract
Trew, D. O., Neilson R. D., Anderson A. - M., Saffran K. A., & Byrtus G. (1998).  Impacts of agriculture on surface water quality in Alberta - Part 2 Provincial Stream Survey. CAESA Canada-Alberta Environmentally Sustainable Agriculture Agreement . 198 pages. Abstract
1997
Anderson, A. - M., Saffran K. A., & Trew D. O. (1997).  Zoobenthos surveys in the Gregg and McLeod Rivers 1985. 82.
Halsey, L. A., Vitt D. H., & Trew D. O. (1997).  Influence of peatlands on the acidity of lakes in northeastern Alberta, Canada. 96(1-4), 17-38.
1996
Saffran, K. A., & Trew D. O. (1996).  Sensitivity of Alberta lakes to acidifying deposition: an update of sensitivity maps with emphasis on 109 northern lakes. 70.
1990
Trew, D. O., Anderson A. M., Kaminski R. P., & Andreychuk A. (1990).  The influence of coal mining activity on the water quality of the Lovett River. 141.
1987
Trew, D. O., Beliveau D. J., & Yonge E. I. (1987).  The Baptiste Lake Study : Technical Report. 381 pp.. Abstract  Download: Baptiste Lake Study Technical report.pdf (23.76 MB)
1986
Babin, J., & Trew D. O. (1986).  Winter oxygen depletion in ten rivers in Alberta: a preliminary investigation.
1978
Trew, D. O., Beliveau D. J., & Yonge E. I. (1978).  Baptiste Lake study : summary report.

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