Photograph of President Truman and others relaxing on the after deck of the U.S.S. WILLIAMSBURG during a vacation cruise to Key West, Florida: (left to right) Gen. Robert Landry (back to camera); John R. Steelman; Charles Murphy; the President; Admiral Robert Dennison; Charles Ross; Commander Donald MacDonald.

Chicago citation style
National Archives and Records Administration. Office of Presidential Libraries. Harry S. Truman Library. 4/1/1985-. Photograph of President Truman and others relaxing on the after deck of the U.S.S. WILLIAMSBURG during a vacation cruise to Key West, Florida: (left to right) Gen. Robert Landry (back to camera); John R. Steelman; Charles Murphy; the President; Admiral Robert Dennison; Charles Ross; Commander Donald MacDonald.. 1950-03-15. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/199032. (Accessed June 24, 2018.)
APA citation style
National Archives and Records Administration. Office of Presidential Libraries. Harry S. Truman Library. 4/1/1985-, (1950-03-15) Photograph of President Truman and others relaxing on the after deck of the U.S.S. WILLIAMSBURG during a vacation cruise to Key West, Florida: (left to right) Gen. Robert Landry (back to camera); John R. Steelman; Charles Murphy; the President; Admiral Robert Dennison; Charles Ross; Commander Donald MacDonald.. Retrieved from the Digital Public Library of America, http://catalog.archives.gov/id/199032
MLA citation style
National Archives and Records Administration. Office of Presidential Libraries. Harry S. Truman Library. 4/1/1985-. Retrieved from the Digital Public Library of America <http://catalog.archives.gov/id/199032>.
Note: These citations are programmatically generated and may be incomplete.