Villapando, I. L. (1984). Systems of price support and procurement of major agricultural commodities in selected Asian countries: An overview. Center on Integrated Rural Development for Asia and the Pacific.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Villapando, Irene L. Systems of Price Support and Procurement of Major Agricultural Commodities in Selected Asian Countries: An Overview. Comilla, Bangladesh: Center on Integrated Rural Development for Asia and the Pacific, 1984.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Villapando, Irene L. Systems of Price Support and Procurement of Major Agricultural Commodities in Selected Asian Countries: An Overview. Center on Integrated Rural Development for Asia and the Pacific, 1984.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.