APA (7th ed.) Citation

Bryce, J. B. V. (1968). The Holy Roman empire. Macmillan.

Chicago Style (17th ed.) Citation

Bryce, James Bryce Viscount. The Holy Roman Empire. London: Macmillan, 1968.

MLA (9th ed.) Citation

Bryce, James Bryce Viscount. The Holy Roman Empire. Macmillan, 1968.

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