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State of the Parks, May 1980: A Report to the Congress. Government Printing Office, 1980.
Seventh Annual Scientific Research Meeting, Great Smoky Mountains National Park, June 25-26, 1981 In Annual Scientific Research Meeting-National Park Service, Southeast Region. Gatlinburg, TN: U.S. Department of the Interior, National Park Service, 1981.
Abstracts of the Nineteenth Annual Scientific Research Meeting In Annual Scientific Research Meeting-National Park Service, Southeast Region. Gatlingburg, TN: U.S. Department of the Interior, National Park Service, 1994.