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Great Smoky Mountains Preliminary Study for Biosphere Reserve Pollutant Monitoring. Las Vegas, Nev. : Environmental Monitoring Systems Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ; Springfield, Va. : National Technical Information Service distributor , 1979.
Visitation Behavior Patterns and Carrying Capacities in the Great Smoky Mountains National Park. Vol. M.A. Georgia State University, 1996.
A battery-operated air sampler for remote areas. Las Vegas, Nev.: Environmental Monitoring and Support Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, 1979.