توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Jones, R. W. (1977). "Two-ness" in trade theory: Costs and benefits. International Finance Section, Dept. of Economics, Princeton University.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Jones, Ronald W. "Two-ness" in Trade Theory: Costs and Benefits. [Princeton, N.J.]: International Finance Section, Dept. of Economics, Princeton University, 1977.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Jones, Ronald W. "Two-ness" in Trade Theory: Costs and Benefits. International Finance Section, Dept. of Economics, Princeton University, 1977.