User talk:Drsapienssapiens

Hello, I'm Materialscientist. I noticed that you made a change to an article, but you didn't provide a reliable source. I’ve removed it for now, but if you’d like to include a citation 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. Thank you. Materialscientist (talk) 00:15, 23 September 2012 (UTC)

Please do not add or change content without verifying it by citing reliable sources. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Thank you. Materialscientist (talk) 23:42, 25 September 2012 (UTC)