Vargas Amaral, R., & de Oliveira Areas, P. (2010). The role of Brazil in the geography of international trade and the effective-ness of the Multilateral Trade System.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Vargas Amaral, Renata, و Patrícia de Oliveira Areas. The Role of Brazil in the Geography of International Trade and the Effective-ness of the Multilateral Trade System. 2010.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Vargas Amaral, Renata, و Patrícia de Oliveira Areas. The Role of Brazil in the Geography of International Trade and the Effective-ness of the Multilateral Trade System. 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.