Books by Ralph L. Evans:
Books in the extended shelves:
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Evans, Ralph L.: An assessment of water quality in the Upper Sangamon River Basin (Illinois State Water Survey, 1974), also by Donald H. Schnepper, Illinois State Water Survey, and Illinois. Environmental Protection Agency (page images at HathiTrust)- Evans, Ralph L.: Diagnostic-feasibility study of Lake Le-Aqua-Na (Illinois State Water Survey, 1983), also by V. Kothandaraman (page images at HathiTrust)
- Evans, Ralph L.: Dissolved oxygen resources and waste assimilative capacity of the La Grange Pool, Illinois River (Illinois Dept. of Registration and Education, 1970), also by Thomas A. Butts and D H Schnepper (page images at HathiTrust)
- Evans, Ralph L.: Reconnaissance study of final cut impoundments (Illinois Institute for Environmental Quality, 1978), also by James P. Gibb (page images at HathiTrust)
- Evans, Ralph L.: Removal of algae from waste stabilization pond effluents-- a state of the art (Illinois State Water Survey, 1972), also by V. Kothandaraman (page images at HathiTrust)
- Evans, Ralph L.: Some results of evaluative techniques applied to wastewater filtration (Illinois State Water Survey, 1976), also by Donald H. Schnepper and Illinois State Water Survey (page images at HathiTrust)
- Evans, Ralph L.: A technique for evaluating algal growth potential in Illinois surface waters (Illinois State Water Survey, 1973), also by Wun-cheng Wang and William T. Sullivan (page images at HathiTrust)
- Evans, Ralph L.: Use of air-water relationships for predicting water temperature (Illinois State Water Survey, 1972), also by V. Kothandaraman (page images at HathiTrust)
- Evans, Ralph L.: Water quality evaluation of the Rector Creek-North Fork Saline River drainage basin (Illinois State Water Survey, 1976), also by Thomas A. Butts and Jack W. Williams (page images at HathiTrust)
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