User talk:84.71.126.212

October 2021
Hello, I'm Uranium Site. I noticed that you added or changed content in an article, Harold Hartley (chemist), but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so. You can have a look at referencing for beginners. If you think I made a mistake, you can leave me a message on my talk page. Thank you. Uranium Site (talk) 12:24, 16 October 2021 (UTC)