Board of Governors of the Federal Reserve System (U.S.), 1935-. "Flow of Funds Accounts of the United States (the Z.1 statistical release) : Attachment 2" in Press Releases of the Board of Governors of the Federal Reserve System
(February 17, 1999).
https://fraser.stlouisfed.org/title/9237/item/674651/content/pdf/frsbog_pr_19990217-2, accessed on April 3, 2026.