Roosevelt, F. D. (1957). Franklin D. Roosevelt & conservation, 1911-1945. General Services Administration, Nat Archives and Records Service, Franklin D. Roosevelt Library.
Chicago-viite (17. p.)Roosevelt, Franklin D. Franklin D. Roosevelt & Conservation, 1911-1945. Hyde Park, N. Y.: General Services Administration, Nat Archives and Records Service, Franklin D. Roosevelt Library, 1957.
MLA-viite (8. p.)Roosevelt, Franklin D. Franklin D. Roosevelt & Conservation, 1911-1945. General Services Administration, Nat Archives and Records Service, Franklin D. Roosevelt Library, 1957.
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