Occupational Wage Survey: Omaha, Nebraska-Iowa, October 1964 : Bulletin of the United States Bureau of Labor Statistics, No. 1430-17
United States. Bureau of Labor Statistics. "Occupational Wage Survey: Omaha, Nebraska-Iowa, October 1964 : Bulletin of the United States Bureau of Labor Statistics, No. 1430-17," Occupational Wage Survey (1964). https://fraser.stlouisfed.org/title/4510/item/497966, accessed on March 29, 2024.