Occupational Wage Survey: Allentown-Bethlehem-Easton, Pennsylvania-New Jersey, February 1962 : Bulletin of the United States Bureau of Labor Statistics, No. 1303-46
United States. Bureau of Labor Statistics. "Occupational Wage Survey: Allentown-Bethlehem-Easton, Pennsylvania-New Jersey, February 1962 : Bulletin of the United States Bureau of Labor Statistics, No. 1303-46," Occupational Wage Survey (1962). https://fraser.stlouisfed.org/title/4510/item/497622, accessed on May 10, 2024.