APA (7th ed.) Citation

Elliott, F., & Summerskill, M. (1959). A Dictionary of Politics. Penguin Books.

Chicago Style (17th ed.) Citation

Elliott, Florence, and Michael Summerskill. A Dictionary of Politics. Woking; London: Penguin Books, 1959.

MLA (8th ed.) Citation

Elliott, Florence, and Michael Summerskill. A Dictionary of Politics. Penguin Books, 1959.