Due, J. F. (1970). Indirect taxation in developing economies: The role and structure of customs duties, excises, and sales taxes. Johns Hopkins Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Due, John Fitzgerald. Indirect Taxation in Developing Economies: The Role and Structure of Customs Duties, Excises, and Sales Taxes. Baltimore: Johns Hopkins Press, 1970.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Due, John Fitzgerald. Indirect Taxation in Developing Economies: The Role and Structure of Customs Duties, Excises, and Sales Taxes. Johns Hopkins Press, 1970.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.