1. T. D. Beard , 1973 . Overwinter Drawdown. Impact on the Aquatic Vegetation in Murphy Flowage, Wisconsin. Dept. Natural Resources, Technical Bulletin No. 61, Madison, wisconsin, 14 pp.
2. S. M. Born, T. L. Wirth, E. M. Brick, and J. O. Peterson , 1973 . Restoring the Recreational Potential of Small Impoundments. The Marion Millpond Experience. Dept. Natural Resources, Technical Bulletin No. 71, Madison, Wisconsin, 20 pp.
3. M. E. Gorman , 1979 . Effects of an Overwinter Drawdown and Incomplete Refill on Autotroph Distribution and Water Chemistry in a Permanent Recreational Pond. M.S. Thesis, Kent State University, Kent, Ohio.
4. W. C. Muenscher , 1944 . Aquatic Plants of the United States , Cornell University Press, Ithaca, New York, 374 pp.
5. S. A. Nichols , 1974 . Mechanical and Habitat Manipulation for Aquatic Plant Management. A Review of Techniques. Dept. Natural Resources, Technical Bulletin No. 77, Madison, Wisconsin, 34 pp.