United States. Bureau of Labor Statistics. Paid Leave Provisions in Major Contracts: 1961: Vacations, Holidays, Jury Duty, Funeral Leave : Bulletin of the United States Bureau of Labor Statistics, No. 1342 , Washington, D.C: G.P.O., October 1962, https://fraser.stlouisfed.org/title/4807, accessed on March 8, 2025.