The Holy Roman empire
MLA
Bryce, James Bryce. The Holy Roman Empire. London: Macmillan & Co. ltd., 1956
APA, 7th edition
Bryce, J. Bryce. (1956). The Holy Roman empire. London: Macmillan & Co. ltd
Chicago, 17th edition
Bryce, James Bryce. The Holy Roman empire. London: Macmillan & Co. ltd., 1956