United States. Department of the Treasury. Citizens Coinage Advisory Committee , United States. Department of the Treasury and United States. Bureau of the Mint. "Meeting, April 28, 2009 : Committee Recommendations" in Citizens Coinage Advisory Committee Meetings, Recommendations, and Minutes (April 28, 2009). https://fraser.stlouisfed.org/title/7136/item/646832/content/pdf/ccac20090428recommendations, accessed on December 1, 2023.