SPERO, J. E. (1990). The politics of international economic relations.--ed.4. St. Martin's Press.
Chicago Style aipamenaSPERO, Joan Edelman. The Politics of International Economic Relations.--ed.4. New York: St. Martin's Press, 1990.
MLA aipamenaSPERO, Joan Edelman. The Politics of International Economic Relations.--ed.4. St. Martin's Press, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.