United States. Congress. Joint Economic Committee, 1956- and Eighty-Sixth Congress, 1959-1961. "Part 7 -- The Effects of Monopolistic and Quasi-Monopolistic Practices, September 22, 23, 24, and 25, 1959" in Employment, Growth, and Price Levels : Hearings Before the Joint Economic Committee, Congress of the United States, Eighty-Sixth Congress, First Session, Pursuant to S. Con. Res. 13 (1959) (September 22, 23, 24, and 25, 1959). https://fraser.stlouisfed.org/title/1242/item/3633, accessed on January 28, 2025.