United Cinephone Corp., 1938-1939 Box 103, Folder 34 Rare Book & Manuscript Library Pare Lorentz papers, 1914-1994, bulk 1932-1960Series VI: Office Files, 1935-1979, undatedSubseries 5. General Files, 1930s-1948
United Nations, 1935-1947 Box 88, Folder 10 Rare Book & Manuscript Library Pare Lorentz papers, 1914-1994, bulk 1932-1960Series VI: Office Files, 1935-1979, undatedSubseries 4. Personal Files, 1935-1947
United Nations, 1937-1947 Box 111, Folder 3 Rare Book & Manuscript Library Pare Lorentz papers, 1914-1994, bulk 1932-1960Series VI: Office Files, 1935-1979, undatedSubseries 5. General Files, 1930s-1948
United Nations, 1949-1955 Box 124, Folder 12 Rare Book & Manuscript Library Pare Lorentz papers, 1914-1994, bulk 1932-1960Series VI: Office Files, 1935-1979, undatedSubseries 7. Subject Files, 1938-1979
United Nations, 1950-1951 Box 60, Folder 10 Rare Book & Manuscript Library Pare Lorentz papers, 1914-1994, bulk 1932-1960Series V: Other Films, 1938-1969, undatedSubseries 2. Nuremberg Trials Film, 1947-1969
United Nations Radiation Report, 1958 Box 143, Folder 1 Rare Book & Manuscript Library Pare Lorentz papers, 1914-1994, bulk 1932-1960Series VIII: Atomic Power and Nuclear War, 1945-1982Subseries 1. The Fight For Survival, 1949-1959
United States Atomic Energy Commission. Radiation Safety and Major Activities in the Atomic Energy Programs: July-December 1956, 1957 Box 189 Rare Book & Manuscript Library Pare Lorentz papers, 1914-1994, bulk 1932-1960Series VIII: Atomic Power and Nuclear War, 1945-1982Subseries 4: Nuclear Energy Books
United States Film Service, 1937-1940 Box 97, Folder 25 Rare Book & Manuscript Library Pare Lorentz papers, 1914-1994, bulk 1932-1960Series VI: Office Files, 1935-1979, undatedSubseries 5. General Files, 1930s-1948
United World Federalists--Atomic Energy Film, 1947-1951 Box 158, Folder 2 Rare Book & Manuscript Library Pare Lorentz papers, 1914-1994, bulk 1932-1960Series VIII: Atomic Power and Nuclear War, 1945-1982Subseries 3. Nuclear Energy Research, 1946-1982, undated
Unity Films, 1939-1940 Box 107, Folder 20 to 25 Rare Book & Manuscript Library Pare Lorentz papers, 1914-1994, bulk 1932-1960Series VI: Office Files, 1935-1979, undatedSubseries 5. General Files, 1930s-1948