User talk:2A02:C7F:2037:2700:6973:5BD:5A4B:74F1

Recent edit to Katherine Ryan
Hello, and welcome to Wikipedia. I noticed that you made a change to an article, Katherine Ryan, 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) 17:39, 11 February 2020 (UTC)