User talk:58.27.198.189

Hello, I'm Materialscientist. I noticed that you made a change to an article, 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! 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) 05:12, 19 December 2015 (UTC)

April 2017
Hello, I'm Qzd. I wanted to let you know that one or more of your recent contributions to Abdus Salam have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you think a mistake was made, or if you have any questions, you can leave me a message on my talk page. Qzd (talk) 17:41, 17 April 2017 (UTC)
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