User talk:184.159.236.57

January 2018
Hello, I'm Zawl. I noticed that you made a change to an article, Project Blue Book, but you didn't provide a source. I’ve removed it for now, but if you’d like to include a citation to a reliable source 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. Thanks. — Za  wl  07:51, 7 January 2018 (UTC)