United States. Bureau of Labor Statistics and Stewart, Maxine G. U.S. Economy in 1980: A Summary of BLS Projections : Bulletin of the United States Bureau of Labor Statistics, No. 1673 , Washington, D.C: For sale by the Supt. of Docs., U.S. Govt. Print. Off., 1970, https://fraser.stlouisfed.org/title/4865, accessed on November 13, 2024.