توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

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.