User talk:2A00:23C4:5707:9000:ACF1:9D2B:5584:8FB4

Recent edit to Document Journal
Hello, and welcome to Wikipedia. I noticed that you made a change to an article, Document Journal, 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) 09:38, 6 February 2020 (UTC)