The undeclared war, 1940-1941 - Langer, William L. (William Leonard) 1896-1977.; Gleason, S. Everett (Sarell Everett) 1905-1974 (Gloucester, Mass. P. Smith, 1968)
Bibliographical footnotes.
Keywords: World War, 1939-1945 -- Diplomatic history; World War, 1939-1945 -- United States; United States -- Foreign relations -- 1933-1945.