Gross Domestic Product: First Quarter 2018 (Second Estimate) | Corporate Profits: First Quarter 2018 (Preliminary Estimate) : Tables, BEA 18-24
United States. Department of Commerce. "Gross Domestic Product: First Quarter 2018 (Second Estimate) | Corporate Profits: First Quarter 2018 (Preliminary Estimate) : Tables, BEA 18-24," United States Department of Commerce News (May 30, 2018). https://fraser.stlouisfed.org/title/6148/item/602632/content/xlsx/bea_newsreleases_20180530_tables-only, accessed on June 12, 2026.