Books by Keith Bildstein:
Books in the extended shelves:
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Bildstein, Keith: Studies in environment. Volume V, Outdoor recreation and the environment (Washington, D. C. : U.S. Environmental Protection Agency, Office of Research and Development, 1974., 1974), also by Benno Kimmelman, Mary Savina, William Horton, Paul Bujak, and United States. Environmental Protection Agency. Office of Research and Development (page images at HathiTrust)
Find more by Keith Bildstein at your library, or elsewhere.