Fehd, Carolyn S. , Ferris, John W. and United States. Bureau of Labor Statistics. Indexes of Output Per Man-Hour: Corrugated and Solid Fiber Boxes Industry, 1958-66 : Bulletin of the United States Bureau of Labor Statistics, No. 1641 , Washington, D.C: U.S. G.P.O., December 1969, https://fraser.stlouisfed.org/title/4749, accessed on September 11, 2024.