APA (7th ed.) Citation

Trevelyan, G. M. (1966). British history in the nineteenth century and after, 1782-1919. Harper.

Chicago Style (17th ed.) Citation

Trevelyan, George Macaulay. British History in the Nineteenth Century and After, 1782-1919. New York: Harper, 1966.

MLA (9th ed.) Citation

Trevelyan, George Macaulay. British History in the Nineteenth Century and After, 1782-1919. Harper, 1966.