Occupational Wage Survey: Baltimore, Maryland, November 1961 : Bulletin of the United States Bureau of Labor Statistics, No. 1303-28
United States. Bureau of Labor Statistics. "Occupational Wage Survey: Baltimore, Maryland, November 1961 : Bulletin of the United States Bureau of Labor Statistics, No. 1303-28," Occupational Wage Survey (1962). https://fraser.stlouisfed.org/title/4510/item/497604, accessed on September 30, 2020.