User talk:2600:1700:9F00:4910:E1B3:CDC3:A3C6:F877

Recent edit to Phillip P. Keene
Hello, and welcome to Wikipedia. I noticed that you made a change to an article, Phillip P. Keene, but you didn't provide a reliable source. It's been removed for now, but if you'd like to include a citation and re-add it, please do so! If you need guidance on referencing, please see the referencing for beginners tutorial, or if you think I made a mistake, you can leave me a message on my talk page. Thank you! Materialscientist (talk) 07:43, 21 February 2020 (UTC)