This primary source comes from the Records of the War Production Board.
National Archives Identifier:
534482Full Citation: Uncle Sam Says-It will take two forces to win this war; ca. 1942 - 1943; Records of the War Production Board, Record Group 179. [Online Version, https://docsteach.org/documents/document/uncle-sam-saysit-will-take-two-forces-to-win-this-war, May 9, 2024]