Area Wage Survey: The Toledo, Ohio-Michigan, Metropolitan Area, February 1970 : Bulletin of the United States Bureau of Labor Statistics, No. 1660-56
United States. Bureau of Labor Statistics. "Area Wage Survey: The Toledo, Ohio-Michigan, Metropolitan Area, February 1970 : Bulletin of the United States Bureau of Labor Statistics, No. 1660-56," Area Wage Survey (1970). https://fraser.stlouisfed.org/title/4655/item/498609, accessed on May 11, 2021.