United States. Bureau of Labor Statistics. "Industry Wage Survey: Men's Shirts and Separate Trousers, May 1978 : Bulletin of the United States Bureau of Labor Statistics, No. 2035,"
Industry Wage Survey: Men's and Boys' Shirts
(1979).
https://fraser.stlouisfed.org/title/4611/item/499535, accessed on July 14, 2025.