United States. Bureau of Labor Statistics.
Wage Structure in Bituminous-Coal Mining, Fall of 1945 : Bulletin of the United States Bureau of Labor Statistics, No. 867 ,
Washington, D.C:
For sale by the Superintendent of Documents, U.S. Government Printing Office,
1946, https://fraser.stlouisfed.org/title/4328,
accessed on December 8, 2025.