Keen, Howard. "Thrifts Compete with Banks : Getting a Clearer View of a Changing Picture," in Federal Reserve Bank of Philadelphia. "September/October 1979," Business Review (Federal Reserve Bank of Philadelphia) (September/October 1979) : 13-27. https://fraser.stlouisfed.org/title/5580/item/557588/toc/523567 , accessed on April 24, 2024.