Não informado. Outlook for U.S. Agricultural Exports. U.S. Department of Agriculture, Economic Research Service.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Outlook for U.S. Agricultural Exports. Washington: U.S. Department of Agriculture, Economic Research Service.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Outlook for U.S. Agricultural Exports. U.S. Department of Agriculture, Economic Research Service.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.