User talk:47.197.24.68

Recent edit to WTIS
Hello, and welcome to Wikipedia. I noticed that you made a change to an article, WTIS, 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) 23:30, 12 December 2018 (UTC)

August 2019
Please do not add or change content, as you did at WTIS, without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Thank you. &#x2230; Bellezzasolo &#x2721;  Discuss  21:54, 23 August 2019 (UTC)
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