Power, J. H. (1969). The structure of protection in the Philippines. Institute of Economic Development and Research, School of Economics, University of the Philippines.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Power, John H. The Structure of Protection in the Philippines. [Quezon City]: Institute of Economic Development and Research, School of Economics, University of the Philippines, 1969.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Power, John H. The Structure of Protection in the Philippines. Institute of Economic Development and Research, School of Economics, University of the Philippines, 1969.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.