Books by Robert G. Knutson:
Books in the extended shelves:
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Knutson, Robert G.: A look at the mine-timber market in the Appalachian bituminous coal region (Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1970), also by United States Forest Service (page images at HathiTrust)- Knutson, Robert G.: Trends in the highway market for wood products (Northeastern Forest Experiment Station, Forest Service, U.S. Dept. of Agriculture, 1975) (page images at HathiTrust)
Find more by Robert G. Knutson at your library, or elsewhere.