United States. Department of Commerce. "Gross Domestic Product: Second Quarter 2017 (Third Estimate) | Corporate Profits: Second Quarter 2017 (Revised Estimate), BEA 17-51,"
United States Department of Commerce News
(September 28, 2017).
https://fraser.stlouisfed.org/title/6148/item/602522, accessed on June 10, 2026.