Westerfield, Janice M. "Commodity Agreements : The Haves vs. the Have-Nots?," in Federal Reserve Bank of Philadelphia. "November/December 1977," Business Review (Federal Reserve Bank of Philadelphia) (November/December 1977) : 11-18. https://fraser.stlouisfed.org/title/5580/item/557577/toc/523536 , accessed on May 3, 2024.