United States. Department of the Treasury. "Quotas on Canadian Wheat and Wheat Flour, June 5, 1959," in United States. Department of the Treasury. "Volume 117," Press Releases of the United States Department of the Treasury (April 2, 1959 - June 30, 1959) : 254-260. https://fraser.stlouisfed.org/title/6111/item/586960/toc/537934 , accessed on June 25, 2024.