Occupational Wage Survey: Lawrence-Haverhill, Massachusetts-New Hampshire, June 1960 : Bulletin of the United States Bureau of Labor Statistics, No. 1265-57
United States. Bureau of Labor Statistics. "Occupational Wage Survey: Lawrence-Haverhill, Massachusetts-New Hampshire, June 1960 : Bulletin of the United States Bureau of Labor Statistics, No. 1265-57," Occupational Wage Survey (August 1960). https://fraser.stlouisfed.org/title/4510/item/495838, accessed on March 28, 2024.
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- United States -- Massachusetts -- Lawrence
- United States -- New Hampshire -- Haverhill