United States. President and Council of Economic Advisers (U.S.). "Proportion of Spending Units Owing Various Types of Assets, by Income Groups," in United States. President and Council of Economic Advisers (U.S.). "January 1951," Economic Report of the President (January 1951) : 236-236. https://fraser.stlouisfed.org/title/45/item/8120/toc/238293 , accessed on April 1, 2023.