Spero, J. E. (1977). The politics of international economic relations. New York: St. Martin's Press.
Chicago Style aipamenaSpero, Joan Edelman. The Politics of International Economic Relations. New York: St. Martin's Press, 1977.
MLA aipamenaSpero, Joan Edelman. The Politics of International Economic Relations. New York: St. Martin's Press, 1977.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.