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Character of the Great Smoky Formation in the Hiwassee River Basin of Tennessee and North Carolina." Tennessee Academy of Science Jurnal 13, no. 4 (1938): 283-295.
"Report on Progress Made in a Survey of the Natural History of the Great Smoky Mountains National Park." Journal of Tennessee Academy of Science 13, no. 1 (1938): 60-62.
"Origin of Compressional Mountains and Associated Phenomena ." Bulletin of the Geological Society of America 62, no. 10 (1951): 1179-1222.
"Nature Notes on the Blue Ridge Parkway. Roanoke, VA: Blue Ridge Parkway Association, 1953.
Ecological Islands as Natural Laboratories." In Sixth Biennial Wilderness Conference . San Francisco, CA, 1959.
"My Wilderness: East to Katahdin.. Garden City, NY: Doubleday, 1961.
Great Smokies: Wonderland for Boys and Girls In Gems of Our Nation. Seymour, IN: Dickson's Inc., 1968.
Hidden Valley of the Smokies, With a Naturalist in the Great Smoky Mountains. New York: Dodd, Mead & Compnay, 1971.
Appalachia; The Mountains, the Place, and the People In A First Book. New York: F. Watts, 1972.
Out Under the Sky of the Great Smokies: A Personal Journal. Knoxville, TN: Greenbrier Press, 1975.
The Southern Appalachians In The American Wilderness. New York: Time-Life Books, 1975.
Cooperating Associations: Frosting on the Cake." National Parks and Conservation 50, no. 11 (1976): 19-21.
"Our Mountain Heritage: Essays on the Natural and Cultural History of Western North Carolina. Cullowhee, NC: Western Carolina University, 1979.
The Mountains of America, from Alaska to the Great Smokies. New York: Bonanza Books, 1981.
A Naturalist's Notebook : Great Smoky Mountains National Park. Gatlinburg, TN: Great Smoky Mountains Natural History Association, 1984.
The Natural History and Taxonomy of Cicurina Bryantae Exline (Araneae, Agelenidae)." Journal of Arachnology 13, no. 1 (1985): 87-96.
"The Great Smokies: A Wildlands Sanctuary. Panorama International Productions, 1987.
Great Smoky Mountains: The Story Behind the Scenery In The Story Behind the Scenery. Las Vegas: KC Publications, 1989.
Junglebrook - A Place Discovered." Smoky Mountain Historical Society Newsletter 15, no. 4 (1989): 105-109.
"Mark Trail in the Smokies!. Great Smoky Mountain History Association, 1989.
Paleontological Evidence of Paleozoic Age for the Walden Creek Group, Ocoee Supergroup, Tennessee." Geology 18, no. 11 (1990): 1041-1045.
"Birds of the Blue Ridge Mountains : A Guide for the Blue Ridge Parkway, Great Smoky Mountains, Shenandoah National Park, and Neighboring Areas. Chapel Hill, NC: University of North Carolina , 1992.
Great Smoky Mountains National Park In A Natural History Guide. Boston: Houghton Mifflin, 1992.