APA Citation

Allen, R. E. (2004). The Penguin English dictionary (2nd ed.). London: Penguin.

Chicago Style Citation

Allen, R. E. The Penguin English Dictionary. 2nd ed. London: Penguin, 2004.

MLA Citation

Allen, R. E. The Penguin English Dictionary. 2nd ed. London: Penguin, 2004.

Warning: These citations may not always be 100% accurate.