APA (7th ed.) Citation

Sewell, B. (1970). The Vatican oracle. Duckwoth.

Chicago Style (17th ed.) Citation

Sewell, Brocard. The Vatican Oracle. London: Duckwoth, 1970.

MLA (9th ed.) Citation

Sewell, Brocard. The Vatican Oracle. Duckwoth, 1970.

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