United States. Bureau of Labor Statistics. Wage Chronology: Lockheed-California Company, Div. of Lockheed Aircraft Corp., and Machinists' Union : Bulletin of the United States Bureau of Labor Statistics, No. 1904 , Washington, D.C: U.S. Dept. of Labor, Bureau of Labor Statistics; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1977, https://fraser.stlouisfed.org/title/4890, accessed on September 11, 2024.