APA (7th ed.) Citation
Robertson, D. (1985). <The> Penguin Dictionary of Politics (1. ed.). Penguin Books.
Chicago Style (17th ed.) Citation
Robertson, David. <The> Penguin Dictionary of Politics. 1. ed. London: Penguin Books, 1985.
MLA (9th ed.) Citation
Robertson, David. <The> Penguin Dictionary of Politics. 1. ed. Penguin Books, 1985.
Warning: These citations may not always be 100% accurate.