Cita APA (7a ed.)

Bryce, J. (1941). The holy roman empire. Macmillan and Co.

Cita Chicago Style (17a ed.)

Bryce, James. The Holy Roman Empire. London: Macmillan and Co, 1941.

Cita MLA (9a ed.)

Bryce, James. The Holy Roman Empire. Macmillan and Co, 1941.