Department of State 1943, p. 96 After it was announced in September iron and steel scrap export would also be prohibited, Japanese Ambassador Kensuke Horinouchi protested to Secretary Hull on October 8, 1940 warning this might be considered an "unfriendly act." Department of State (1943), Peace and War, United States Foreign Policy 1931–1941, Washington D.C.: United States Government Printing Office, archived from the original on May 12, 2008, retrieved December 8, 2007
Department of State 1943, p. 96 After it was announced in September iron and steel scrap export would also be prohibited, Japanese Ambassador Kensuke Horinouchi protested to Secretary Hull on October 8, 1940 warning this might be considered an "unfriendly act." Department of State (1943), Peace and War, United States Foreign Policy 1931–1941, Washington D.C.: United States Government Printing Office, archived from the original on May 12, 2008, retrieved December 8, 2007