Dieffenbach, F. (2011). Appalachian National Scenic Trail vital signs monitoring plan. U.S. Department of the Interior, National Park Service, Natural Resource Program Center.
Chicago Style (17th ed.) CitationDieffenbach, Fred. Appalachian National Scenic Trail Vital Signs Monitoring Plan. Fort Collins, Colorado: U.S. Department of the Interior, National Park Service, Natural Resource Program Center, 2011.
MLA (9th ed.) CitationDieffenbach, Fred. Appalachian National Scenic Trail Vital Signs Monitoring Plan. U.S. Department of the Interior, National Park Service, Natural Resource Program Center, 2011.
Warning: These citations may not always be 100% accurate.