Tan, N. A. (1987). Incentives and protection policies in relation to comparative advantage and labor intensity in Philippine manufacturing: An evaluation. School of Economics, University of the Philippines.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Tan, Norma A. Incentives and Protection Policies in Relation to Comparative Advantage and Labor Intensity in Philippine Manufacturing: An Evaluation. [Quezon City]: School of Economics, University of the Philippines, 1987.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Tan, Norma A. Incentives and Protection Policies in Relation to Comparative Advantage and Labor Intensity in Philippine Manufacturing: An Evaluation. School of Economics, University of the Philippines, 1987.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.