APA (7th ed.) Citation

Trevelyan, G. M. (1959). A shortened history of England. Penguin Books.

Chicago Style (17th ed.) Citation

Trevelyan, George Macaulay. A Shortened History of England. Londres: Penguin Books, 1959.

MLA (9th ed.) Citation

Trevelyan, George Macaulay. A Shortened History of England. Penguin Books, 1959.