The Online Books Page

Books by William R. Duffer:

Books in the extended shelves:

• Duffer, William R.: Changes in water quality resulting from impoundment (U.S. Environmental Protection Agency]; for sale by the Supt. of Docs., U.S. Govt. Off., 1971), also by Curtis C. Harlin and United States. Environmental Protection Agency. Office of Research and Monitoring (page images at HathiTrust; US access only)
• Duffer, William R.: Effects of feedlot runoff on water quality of impoundments ([U.S. Environmental Protection Agency; for sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1971), also by Curtis C. Harlin and R. Douglas Kreis (page images at HathiTrust; US access only)
• Duffer, William R.: Induced hypolimnion aeration for water quality improvement of power releases ([Environmental Protection Agency, Water Quality Office]; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1970), also by Lowell E. Leach, Curtis C. Harlin, and United States. Environmental Protection Agency. Water Quality Office (page images at HathiTrust)
• Duffer, William R.: Municipal wastewater aquaculture (Environmental Protection Agency, Office of Research and Development, Robert S. Kerr Environmental Research Laboratory ;, 1978), also by James E Moyer and Robert S. Kerr Environmental Research Laboratory (page images at HathiTrust)

Find more by William R. Duffer at your library, or elsewhere.