United States. President and Council of Economic Advisers (U.S.). "Selected Measures of Unemployment and Part-Time Employment," in United States. President and Council of Economic Advisers (U.S.). "1965," Economic Report of the President (1965) : 223-223. https://fraser.stlouisfed.org/title/45/item/8136/toc/113427 , accessed on May 12, 2024.