Cita APA (7a ed.)

Bryce, J. B. (1921). The Holy Roman empire (A new ed., enl. and rev. throughout, with a chronological table of events and three maps.). MacMillan.

Cita Chicago Style (17a ed.)

Bryce, James Bryce. The Holy Roman Empire. A new ed., enl. and rev. throughout, with a chronological table of events and three maps. New York: MacMillan, 1921.

Cita MLA (9a ed.)

Bryce, James Bryce. The Holy Roman Empire. A new ed., enl. and rev. throughout, with a chronological table of events and three maps. MacMillan, 1921.