Spero, J. E. (1997). The politics of international economic relations. Routledge.
Chicago Style (17th ed.) ZitazioaSpero, Joan Edelman. The Politics of International Economic Relations. London: Routledge, 1997.
MLA (9th ed.) ZitazioaSpero, Joan Edelman. The Politics of International Economic Relations. Routledge, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.