Federal Reserve Bank of Atlanta. "Summary of Business Conditions in the United States," in Federal Reserve Bank of Atlanta. "June 30, 1928, Volume 13, Number 6," Economic Review (Federal Reserve Bank of Atlanta) (June 30, 1928) : 1-1. https://fraser.stlouisfed.org/title/884/item/34564/toc/178288 , accessed on April 25, 2024.