Loft, Jacob
, Ober, Harry
and United States. Bureau of Labor Statistics. Division of Industrial Relations.
Wage Structure of the Nonferrous Metals Industry, 1941-42 : Bulletin of the United States Bureau of Labor Statistics, No. 729 ,
Washington, D.C:
G.P.O.,
1943, https://fraser.stlouisfed.org/title/4223,
accessed on January 16, 2026.