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- https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse English Arabic توماس ميدغلي، مهندس ميكانيكي وكيميائي...(390 × 486 (26 KB)) - 19:15, 30 July 2024
- Copyright determination made by Science History Institute (Q5090408) using RightsStatements.org English Portrait of Thomas Midgley, Jr. (1889-1944)...(2,816 × 3,663 (887 KB)) - 01:26, 26 February 2024