United States. Department of Commerce. "National Income and Product Accounts : Preliminary Second Quarter 1986 (GNP), Revised Estimates: 1983 Through First Quarter 1986, BEA 86-33,"
United States Department of Commerce News
(July 22, 1986).
https://fraser.stlouisfed.org/title/6148/item/596596, accessed on June 2, 2026.