APA (7th ed.) Citation

Vryonis, S. (1967). Byzantium and Europe ([First American edition.). Harcourt, Brace & World.

Chicago Style (17th ed.) Citation

Vryonis, Speros. Byzantium and Europe. [First American edition. New York]: Harcourt, Brace & World, 1967.

MLA (9th ed.) Citation

Vryonis, Speros. Byzantium and Europe. [First American edition. Harcourt, Brace & World, 1967.