APA (7th ed.) Zitazioa
Grumeza, I. (2010). The roots of Balkanization: Eastern Europe C.E. 500-1500. University Press of America.
Chicago Style (17th ed.) Zitazioa
Grumeza, Ion. The Roots of Balkanization: Eastern Europe C.E. 500-1500. Lanham, Md.: University Press of America, 2010.
MLA (9th ed.) Zitazioa
Grumeza, Ion. The Roots of Balkanization: Eastern Europe C.E. 500-1500. University Press of America, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.