Tohutoro APA (7th ed.)
Stephenson, P. (2000). Byzantium's Balkan frontier: A political study of the Northern Balkans, 900-1204. Cambridge University Press.
Tohutoru Kātū Chicago (17th ed.)
Stephenson, Paul. Byzantium's Balkan Frontier: A Political Study of the Northern Balkans, 900-1204. Cambridge ; New York: Cambridge University Press, 2000.
Tohutoro MLA (9th ed.)
Stephenson, Paul. Byzantium's Balkan Frontier: A Political Study of the Northern Balkans, 900-1204. Cambridge University Press, 2000.
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