Centre for Natural Resources, Energy, and Transport (United Nations). (1978). Register of international rivers. Published for the United Nations by Pergamon Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Centre for Natural Resources, Energy, and Transport (United Nations). Register of International Rivers. Oxford [Eng.] ; New York: Published for the United Nations by Pergamon Press, 1978.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Centre for Natural Resources, Energy, and Transport (United Nations). Register of International Rivers. Published for the United Nations by Pergamon Press, 1978.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.