United States. Department of the Interior. Office of the Secretary. (1916). National Safety First Exposition held under auspices of Federal Government, new National Museum, Washington, D.C., Feb. 21-26, 1916. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Department of the Interior. Office of the Secretary. National Safety First Exposition Held Under Auspices of Federal Government, New National Museum, Washington, D.C., Feb. 21-26, 1916. Washington: U.S. GPO, 1916.
MLA (9th ed.) CitationUnited States. Department of the Interior. Office of the Secretary. National Safety First Exposition Held Under Auspices of Federal Government, New National Museum, Washington, D.C., Feb. 21-26, 1916. U.S. GPO, 1916.
Warning: These citations may not always be 100% accurate.