Area Wage Survey: Pittsburgh, Pennsylvania, Metropolitan Area, January 1976 : Bulletin of the United States Bureau of Labor Statistics, No. 1900-1
United States. Bureau of Labor Statistics. "Area Wage Survey: Pittsburgh, Pennsylvania, Metropolitan Area, January 1976 : Bulletin of the United States Bureau of Labor Statistics, No. 1900-1," Area Wage Survey (1976). https://fraser.stlouisfed.org/title/4655/item/499194, accessed on April 19, 2024.