User talk:KSRRH

January 2017
Hello, I'm Materialscientist. I wanted to let you know that one or more of your recent contributions to Que sera have been undone because they did not appear constructive. If you would like to experiment, please use the sandbox. If you think a mistake was made, or if you have any questions, you can leave me a message on my talk page. Materialscientist (talk) 11:10, 4 January 2017 (UTC)

Please do not add or change content without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. Thank you. Materialscientist (talk) 11:43, 4 January 2017 (UTC)