User talk:Zcui1
May 2017
Hello, I'm Materialscientist. I noticed that you made a change to an article, Walter Shenson, but you didn't provide a source. I’ve removed it for now, but if you’d like to include a citation to a reliable source and re-add it, please do so! If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Materialscientist (talk) 13:00, 3 May 2017 (UTC)
Please stop adding unsourced content, as you did to Walter Shenson. This contravenes Wikipedia's policy on verifiability. If you continue to do so, you may be blocked from editing Wikipedia. --Hammersoft (talk) 14:58, 3 May 2017 (UTC)