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- DescriptionNNN Mechanism of Action.png English: Method of action for N-Nitrosonornicotine and other nitroso compounds. Date 2 November 2004 Source https://www...(480 × 694 (118 KB)) - 03:40, 16 August 2020
- This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or...(1,462 × 1,893 (17.06 MB)) - 20:39, 2 January 2021
- File:LifeMagazine27Jul1911.pdf (category Allegories of plants)1, 1929. Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons...(1,320 × 1,631 (18.45 MB)) - 17:20, 13 June 2022