User talk:WDHWILLIAM

Hello, I'm Danmuz. I noticed that you made a change to an article, J. D. Sumner, 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 think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thank you. Danmuz (talk) 07:37, 29 July 2013 (UTC)