United States. Congress. House. Committee on Government Operations and Eighty-Ninth Congress, 1965-1967. Federal Reserve System--Check Clearance Float : Hearing before a Subcommittee of the Committee on Government Operations, House of Representatives, Eighty-Ninth Congress, Second Session, February 9, 1966. February 9, 1966, https://fraser.stlouisfed.org/title/9291, accessed on January 14, 2025.