1. Appropriations. Estimate for The Panama Canal, 1945. Bookmark Corporate/Agency Authors: Panama Canal Publisher: Panama Canal Date: [1944.] SuDoc number: W 79.11/2:Es 8/945
2. Appropriations. Estimates for The Panama Canal, 1941. Bookmark Corporate/Agency Authors: Panama Canal Publisher: Panama Canal Date: [1939.] SuDoc number: W 79.11/2:Es 8/941