Cita APA (7a ed.)

Sefton, D. S. (1979). Pope Hadrian I and the Fall of the Kingdom of the Lombards. The catholic historical review, 65(2), 206-220.

Cita Chicago Style (17a ed.)

Sefton, David Stevens. "Pope Hadrian I and the Fall of the Kingdom of the Lombards." The Catholic Historical Review 65, no. 2 (1979): 206-220.

Cita MLA (9a ed.)

Sefton, David Stevens. "Pope Hadrian I and the Fall of the Kingdom of the Lombards." The Catholic Historical Review, vol. 65, no. 2, 1979, pp. 206-220.

Precaución: Estas citas no son 100% exactas.