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Boundary modifications of Voyageurs National Park : report (to accompany S. 2805).

United States. Congress. Senate. Committee on Energy and Natural Resources, author.
[Washington, D.C.] : [U.S. Government Publishing Office], [2016] 2016

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