APA (7th ed.) Citation

Palmer, A. W. (1983). The Penguin dictionary of modern history, 1789-1945 (2nd ed.). Penguin Books.

Chicago Style (17th ed.) Citation

Palmer, Alan Warwick. The Penguin Dictionary of Modern History, 1789-1945. 2nd ed. London: Penguin Books, 1983.

MLA (9th ed.) Citation

Palmer, Alan Warwick. The Penguin Dictionary of Modern History, 1789-1945. 2nd ed. Penguin Books, 1983.