United States. Bureau of Agricultural Economics, United States. Agricultural Marketing Service, United States. Dept. of Agriculture. Economic Research Service, United States. Dept. of Agriculture. Economics, Statistics, and Cooperatives Service, United States. Dept. of Agriculture. Economics and Statistics Service, & United States. World Food and Agricultural Outlook and Situation Board. (1980). The Dairy situation. The Bureau.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States. Bureau of Agricultural Economics, United States. Agricultural Marketing Service, United States. Dept. of Agriculture. Economic Research Service, Statistics United States. Dept. of Agriculture. Economics, United States. Dept. of Agriculture. Economics and Statistics Service, و United States. World Food and Agricultural Outlook and Situation Board. The Dairy Situation. Washington: The Bureau, 1980.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)United States. Bureau of Agricultural Economics, et al. The Dairy Situation. The Bureau, 1980.