User talk:72.92.29.21

July 2018
Hello, I'm Donner60. I noticed that you made a change to an article, Columbia-class submarine, 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. Donner60 (talk) 03:51, 27 July 2018 (UTC)
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 * Please either make the changes you suggest in the text if you are certain they are correct or put your comment on the talk page. Comments or mere assertions contradicting the text should not be placed in the text of articles. You may express comments about the content of the article and needed improvements or changes or ask for comments or help on the article's talk page if you do not wish to do them yourself in line with Wikipedia style guidelines. See Help:Introduction to talk pages, Help:Using talk pages and Talk page guidelines. You also may find the following pages have useful information about Wikipedia: Identifying reliable sources, Verifiability, No original research, Neutral point of view, What Wikipedia is not, Words to watch, Biographies of living persons, Getting started; Introduction to Wikipedia; Simplified ruleset; and Simplified Manual of Style. If you are contradicting or changing the current text, please cite a reliable, verifiable source for your edit. If there are two points of view, add yours with a citation but do not delete the other one if it has some credible basis in a reliable source. Thank you. Donner60 (talk) 03:55, 27 July 2018 (UTC)