APA (7th ed.) Citation

Palmer, A. W. (1965). A dictionary of modern history, 1789-1945 (First edition.). Penguin Books.

Chicago Style (17th ed.) Citation

Palmer, Alan Warwick. A Dictionary of Modern History, 1789-1945. First edition. Harmondsworth, Middlesex: Penguin Books, 1965.

MLA (8th ed.) Citation

Palmer, Alan Warwick. A Dictionary of Modern History, 1789-1945. First edition. Penguin Books, 1965.