User talk:Nada3526

Welcome!
Welcome to Wikipedia, Nada3526! Thank you for your contributions. I am Keithbob and I have been editing Wikipedia for some time, so if you have any questions feel free to leave me a message on my talk page. You can also check out Questions or type at the bottom of this page. Here are some pages that you might find helpful: Also, when you post on talk pages you should sign your name using four tildes ( ~ ); that will automatically produce your username and the date. I hope you enjoy editing here and being a Wikipedian!  — Keithbob • Talk  • 22:38, 23 December 2013 (UTC)
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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 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) 23:04, 23 December 2013 (UTC)