Cita APA

Spero, J. E., & Spero, J. E. (1990). The politics of international economic relations (4. edition.). New York: St. Martin's Press.

Citación estilo Chicago

Spero, Joan Edelman, y Joan Edelman Spero. The Politics of International Economic Relations. 4. edition. New York: St. Martin's Press, 1990.

Cita MLA

Spero, Joan Edelman, y Joan Edelman Spero. The Politics of International Economic Relations. 4. edition. New York: St. Martin's Press, 1990.