APA (7th ed.) Citation

Anastasio Sinaíta ca. 640-ca. 700 & Uthemann, K. (1981). Viae Dux. Brepols [etc.].

Chicago Style (17th ed.) Citation

Anastasio Sinaíta ca. 640-ca. 700 and Karl-Heinz Uthemann. Viae Dux. Turnhout [etc.]: Brepols [etc.], 1981.

MLA (9th ed.) Citation

Anastasio Sinaíta ca. 640-ca. 700 and Karl-Heinz Uthemann. Viae Dux. Brepols [etc.], 1981.