Galtung, J., & Hoivik, T. (1968). On the definition and theory of development: With a view to the application of rank order indicators in the elaboration of a composite index of human resources. UNESCO.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Galtung, Johan, و Tord Hoivik. On the Definition and Theory of Development: With a View to the Application of Rank Order Indicators in the Elaboration of a Composite Index of Human Resources. Paris: UNESCO, 1968.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Galtung, Johan, و Tord Hoivik. On the Definition and Theory of Development: With a View to the Application of Rank Order Indicators in the Elaboration of a Composite Index of Human Resources. UNESCO, 1968.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.