User talk:Lourid21

October 2015
Hello, I'm Mcmatter. I noticed that you made a change to an article, Titan Cement, but you didn't provide a reliable source. It's been removed and archived in the page history 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. McMatter (talk)/(contrib) 16:17, 12 October 2015 (UTC)

Please do not add or significantly change content without citing verifiable and reliable sources. Before making any potentially controversial edits, it is recommended that you discuss them first on the article's talk page. Please review the guidelines at Citing sources and take this opportunity to add references to the article. DVdm (talk) 16:27, 12 October 2015 (UTC)