United States. Department of Agriculture. Economic Research Service. Foreign Development and Trade Division. (1965). Changes in agriculture in 26 developing nations, 1948 to 1963. Economic Research Service, United States Department of Agriculture.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States. Department of Agriculture. Economic Research Service. Foreign Development and Trade Division. Changes in Agriculture in 26 Developing Nations, 1948 to 1963. [Washington, D.C.]: Economic Research Service, United States Department of Agriculture, 1965.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)United States. Department of Agriculture. Economic Research Service. Foreign Development and Trade Division. Changes in Agriculture in 26 Developing Nations, 1948 to 1963. Economic Research Service, United States Department of Agriculture, 1965.