User talk:2400:ADC5:139:9000:396B:1FA8:DC1F:7E56

December 2021
Hello, I'm BilCat. I noticed that you added or changed content in an article, Mikoyan-Gurevich MiG-21, but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so. You can have a look at referencing for beginners. If you think I made a mistake, you can leave me a message on my talk page. Thank you. BilCat (talk) 11:31, 18 December 2021 (UTC)