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Evaluation of the sensitivity of inventory and monitoring national parks to acidification effects fr

Sullivan, Timothy J. (Timothy Joseph), 1950- author.
Denver, Colorado : U.S. Department of the Interior, National Park Service, Natural Resource Program Center, 2011. 2011

Evaluation of the sensitivity of inventory and monitoring national parks to nutrient enrichment effe

Sullivan, Timothy J. (Timothy Joseph), 1950- author.
Denver, Colorado : U.S. Department of the Interior, National Park Service, Natural Resource Program Center, 2011. 2011

Final general management plan, environmental impact statement : Isle Royale National Park, Michigan.

United States. National Park Service.
[Denver, Colo.] : U.S. Dept. of the Interior, National Park Service, [1998] 1998