Roe, H.B. Farm drainage methods survey and design, 1908-1922. 1924. Saint Paul, Minn.: University of Minnesota. Agricultural Experiment Station. Bulletin 216,
Bulletin (University of Minnesota. Agricultural Experiment Station);
This archival publication may not reflect current scientific knowledge or recommendations. Current information available from University of Minnesota Agricultural Experiment Station: http://www.maes.umn.edu/
Roe, H. B..
Farm drainage methods: survey and design, 1908-1922.
University of Minnesota. Agricultural Experiment Station.
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