SPERO, J. E. (1990). The politics of international economic relations.--ed.4. St. Martin's Press.
芝加哥风格引文SPERO, Joan Edelman. The Politics of International Economic Relations.--ed.4. New York: St. Martin's Press, 1990.
MLA引文SPERO, Joan Edelman. The Politics of International Economic Relations.--ed.4. St. Martin's Press, 1990.
警告：这些引文格式不一定是100％准确.