APA (7th ed.) Citation

Lord, R. H. (1924). The origins of the war of 1870: New documents from the German archives. Harvard historical studies.

Chicago Style (17th ed.) Citation

Lord, Robert Howard. "The Origins of the War of 1870: New Documents from the German Archives." Harvard Historical Studies 1924.

MLA (9th ed.) Citation

Lord, Robert Howard. "The Origins of the War of 1870: New Documents from the German Archives." Harvard Historical Studies, 1924.