APA (7th ed.) Zitazioa
O'Hanlon, M. E. (2017). Beyond NATO: A New Security Architecture for Eastern Europe. Project Muse.
Chicago Style (17th ed.) Zitazioa
O'Hanlon, Michael E. Beyond NATO: A New Security Architecture for Eastern Europe. Baltimore, Maryland: Project Muse, 2017.
MLA (9th ed.) Zitazioa
O'Hanlon, Michael E. Beyond NATO: A New Security Architecture for Eastern Europe. Project Muse, 2017.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.