Cohany, Harry P. and Neary, H. James. Unaffiliated Local and Single-Employer Unions in the United States, 1961 : Bulletin of the United States Bureau of Labor Statistics, No. 1348 , Washington, D.C: G.P.O., November 1962, https://fraser.stlouisfed.org/title/4869, accessed on November 22, 2024.