APA (7th ed.) Zitazioa
Barkin, J. S. (2006). International organization: Theories and institutions. Palgrave Macmillan.
Chicago Style (17th ed.) Zitazioa
Barkin, J. Samuel. International Organization: Theories and Institutions. New York: Palgrave Macmillan, 2006.
MLA (9th ed.) Zitazioa
Barkin, J. Samuel. International Organization: Theories and Institutions. Palgrave Macmillan, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.