APA (7th ed.) Citation

Riley, E. M. (1956). Independence National Historic Park, Philadelphia, Pa. (Revised 1956.). United States Department of the Interior, National Park Service.

Chicago Style (17th ed.) Citation

Riley, Edward M. Independence National Historic Park, Philadelphia, Pa. Revised 1956. Washington, D.C.: United States Department of the Interior, National Park Service, 1956.

MLA (9th ed.) Citation

Riley, Edward M. Independence National Historic Park, Philadelphia, Pa. Revised 1956. United States Department of the Interior, National Park Service, 1956.