User talk:2601:206:8586:7990:58D7:CE9:F921:84BF

June 2024
Please do not add or change content, as you did at International Union of Pure and Applied Chemistry‎, without citing a reliable source. Please review the guidelines at Citing sources and take this opportunity to add references to the article. ''Please quote the exact part of Red Book or other ref that supports your claim. I cited where it contradicts what you are saying.'' DMacks (talk) 03:50, 11 June 2024 (UTC)