APA (7th ed.) Citation

Henning, J. (2009). Byzantium, Pliska, and the Balkans. De Gruyter.

Chicago Style (17th ed.) Citation

Henning, Joachim. Byzantium, Pliska, and the Balkans. Berlin/Boston: De Gruyter, 2009.

MLA (9th ed.) Citation

Henning, Joachim. Byzantium, Pliska, and the Balkans. De Gruyter, 2009.

Warning: These citations may not always be 100% accurate.