Books by Barbara J. Ryan:
Books in the extended shelves:
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Ryan, Barbara J., 1952-: Hydrogeology and results of aquifer tests in the vicinity of a hazardous-waste disposal site near Byron, Illinois (Dept. of the Interior, U.S. Geological Survey ;, 1989), also by Robert T. Kay, David N. Olson, Geological Survey (U.S.), and United States Environmental Protection Agency (page images at HathiTrust)
Find more by Barbara J. Ryan at your library, or elsewhere.