APA (7th ed.) Zitazioa
Polk, W. R. (1997). Neighbors & strangers: The fundamentals of foreign affairs. University of Chicago Press.
Chicago Style (17th ed.) Zitazioa
Polk, William R. Neighbors & Strangers: The Fundamentals of Foreign Affairs. Chicago: University of Chicago Press, 1997.
MLA (9th ed.) Zitazioa
Polk, William R. Neighbors & Strangers: The Fundamentals of Foreign Affairs. University of Chicago Press, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.