Tinbergen, J. (1971). Towards a better international economic order. New York: United Nations Institute for Training and Research.
استشهاد بنمط شيكاغوTinbergen, Jan. Towards a Better International Economic Order. New York: United Nations Institute for Training and Research, 1971.
MLA استشهادTinbergen, Jan. Towards a Better International Economic Order. New York: United Nations Institute for Training and Research, 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.