Philippines. Bureau of Agricultural Economics. (1982). Accomplishment report. Republic of the Philippines, Ministry of Agriculture, Bureau of Agricultural Economics.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Philippines. Bureau of Agricultural Economics. Accomplishment Report. Quezon City: Republic of the Philippines, Ministry of Agriculture, Bureau of Agricultural Economics, 1982.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Philippines. Bureau of Agricultural Economics. Accomplishment Report. Republic of the Philippines, Ministry of Agriculture, Bureau of Agricultural Economics, 1982.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.