User talk:47.60.33.252

January 2020
Hello, I'm Chris troutman. An edit that you recently made to User talk:Materialscientist seemed to be a test and has been removed. If you want to practice editing, 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. Thanks! Chris Troutman ( talk ) 14:26, 10 January 2020 (UTC)
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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) 14:34, 10 January 2020 (UTC)