Regional Patterns of Industrial Activity and Freight Transportation in the United States
Federal Reserve Bank of Cleveland. "Regional Patterns of Industrial Activity and Freight Transportation in the United States," in Federal Reserve Bank of Cleveland. "September 1968," Economic Review (Federal Reserve Bank of Cleveland) (September 1968) : 12-31. https://fraser.stlouisfed.org/title/1328/item/4460/toc/269245 , accessed on May 17, 2024.