United States. Bureau of Labor Statistics. "Area Wage Survey: Providence-Warwick-Pawtucket, Rhode Island-Massachusetts, Metropolitan Area, June 1980 : Bulletin of the United States Bureau of Labor Statistics, No. 3000-27," Area Wage Survey (October 1980). https://fraser.stlouisfed.org/title/4655/item/582128, accessed on September 5, 2024.