APA (7th ed.) Citation

Elliott, F., & Summerskill, M. (1957). A dictionary of politics. Penguin Books.

Chicago Style (17th ed.) Citation

Elliott, Florence, and Michael Summerskill. A Dictionary of Politics. Harmondsworth: Penguin Books, 1957.

MLA (9th ed.) Citation

Elliott, Florence, and Michael Summerskill. A Dictionary of Politics. Penguin Books, 1957.