Federal Reserve Bank of Philadelphia. "Joe Kosek Looks Ahead : The Boom Years - 1890 to 1917," in Federal Reserve Bank of Philadelphia. "March 1956," Business Review (Federal Reserve Bank of Philadelphia) (March 1956) : 2-7. https://fraser.stlouisfed.org/title/5580/item/557329/toc/522858 , accessed on May 3, 2024.