United States. Department of the Treasury. "Cumulative Dividends Report as of May 31, 2015," Dividends and Interest Report (June 10, 2015). https://fraser.stlouisfed.org/title/5152/item/519778, accessed on May 4, 2024.
United States. Department of the Treasury. "Cumulative Dividends Report as of May 31, 2015," Dividends and Interest Report (June 10, 2015). https://fraser.stlouisfed.org/title/5152/item/519778, accessed on May 4, 2024.