United States. President and Council of Economic Advisers (U.S.). "Number and Money Income of Families and Unrelated Individuals," in United States. President and Council of Economic Advisers (U.S.). "1966," Economic Report of the President (1966) : 234-234. https://fraser.stlouisfed.org/title/45/item/8137/toc/350204 , accessed on April 25, 2024.