International Conference of Agricultural Economists Buenos Aires, Argentina, International Association of Agricultural Economists, Valdés, A., & Maunder, A. (1989). Agriculture and governments in an interdependent world: Proceedings of the twentieth International Conference of Agricultural Economists, held at Buenos Aires, Argentina, 24-31, August, 1988. Dartmouth :.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Conference of Agricultural Economists Buenos Aires, Argentina, International Association of Agricultural Economists, Alberto Valdés, و Allen Maunder. Agriculture and Governments in an Interdependent World: Proceedings of the Twentieth International Conference of Agricultural Economists, Held at Buenos Aires, Argentina, 24-31, August, 1988. Aldershot, Hants: Dartmouth :, 1989.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)International Conference of Agricultural Economists Buenos Aires, Argentina, et al. Agriculture and Governments in an Interdependent World: Proceedings of the Twentieth International Conference of Agricultural Economists, Held at Buenos Aires, Argentina, 24-31, August, 1988. Dartmouth :, 1989.