Shenandoah Natural History Association, Shenandoah National Park (Agency : U.S.), United States. National Park Service, & Schaffner, V. (1969). Swamp Nature Trail: Shenandoah National Park, Virginia (Rev. [ed.].). Published by Shenandoah Natural History Association in cooperation with Shenandoah National Park, National Park Service, U.S. Dept. of the Interior.
Chicago Style (17th ed.) CitationShenandoah Natural History Association, Shenandoah National Park (Agency : U.S.), United States. National Park Service, and Vera Schaffner. Swamp Nature Trail: Shenandoah National Park, Virginia. Rev. [ed.]. [Luray, Va.]: Published by Shenandoah Natural History Association in cooperation with Shenandoah National Park, National Park Service, U.S. Dept. of the Interior, 1969.
MLA (9th ed.) CitationShenandoah Natural History Association, et al. Swamp Nature Trail: Shenandoah National Park, Virginia. Rev. [ed.]. Published by Shenandoah Natural History Association in cooperation with Shenandoah National Park, National Park Service, U.S. Dept. of the Interior, 1969.