United States. President and Council of Economic Advisers (U.S.). "Number of Wage and Salary Workers in Nonagricultural Establishments," in United States. President and Council of Economic Advisers (U.S.). "January 1948," Economic Report of the President (January 1948) : 124-124. https://fraser.stlouisfed.org/title/45/item/8114/toc/296946 , accessed on May 9, 2024.