United States. Bureau of Labor Statistics. "Employee Earnings and Hours at Retail Building Materials, Hardware, and Farm Equipment Dealers, June 1966 : Bulletin of the United States Bureau of Labor Statistics, No. 1584-1," Employee Earnings and Hours at Retail Building Materials, Hardware, and Farm Equipment Dealers (1968). https://fraser.stlouisfed.org/title/4704/item/498405, accessed on January 31, 2025.