Hello, and welcome to Wikipedia. I noticed that you made a change to an article, Katlang, 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) 10:02, 3 March 2017 (UTC)
June 2022 edit
This is your only warning; if you use Wikipedia for soapboxing, promotion or advertising again, as you did at Logistics, you may be blocked from editing without further notice. Zefr (talk) 02:49, 25 June 2022 (UTC)
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