Books by Roger W. Bachmann:
Books in the extended shelves:
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Bachmann, Roger W.: A study of the effects of stream channelization and bank stabilization on warm water sport fish in Iowa. Subproject no. 4, The effects of long-reach channelization on habitat and invertebrate drift in some Iowa streams (Iowa Cooperative Fishery Research Unit, Iowa State University, 1976), also by David William Zimmer, U.S. Fish and Wildlife Service, Iowa State Conservation Commission, Iowa State University, and Iowa State University. Iowa Cooperative Fishery Research Unit (page images at HathiTrust)- Bachmann, Roger W.: Water quality in the Iowa Great Lakes : a report to the Iowa Great Lakes Water Quality Control Plan (Iowa State University, 1974), also by John R. Jones and Iowa Agriculture and Home Economics Experiment Station (page images at HathiTrust)
Find more by Roger W. Bachmann at your library, or elsewhere.