United States. Department of Commerce. "Gross Domestic Product: Second Quarter 2015 (Second Estimate) | Corporate Profits: Second Quarter 2015 (Preliminary Estimate), BEA 15-38,"
United States Department of Commerce News
(August 27, 2015).
https://fraser.stlouisfed.org/title/6148/item/602256, accessed on June 12, 2026.