Area Wage Survey: The Indianapolis, Indiana, Metropolitan Area, December 1967 : Bulletin of the United States Bureau of Labor Statistics, No. 1575-36
United States. Bureau of Labor Statistics. "Area Wage Survey: The Indianapolis, Indiana, Metropolitan Area, December 1967 : Bulletin of the United States Bureau of Labor Statistics, No. 1575-36," Area Wage Survey (1968). https://fraser.stlouisfed.org/title/4655/item/498348, accessed on April 24, 2024.