User talk:51.9.136.168

April 2024
Hello, I'm Greyjoy. I noticed that you added or changed content in an article, Cavity wall, 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.  Grey joy talk 19:24, 26 April 2024 (UTC)

Please do not add or change content without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Thank you. MrOllie (talk) 19:39, 26 April 2024 (UTC)

May 2024
Please stop. If you continue to blank out or remove portions of page content, templates, or other materials from Wikipedia without adequate explanation, as you did at Talk:Chemistry of ascorbic acid, you may be blocked from editing. DMacks (talk) 03:22, 9 May 2024 (UTC)