APA (7th ed.) Citation

Crystal, D. (2008). The Penguin book of facts (2nd ed.). Penguin Group.

Chicago Style (17th ed.) Citation

Crystal, David. The Penguin Book of Facts. 2nd ed. London: Penguin Group, 2008.

MLA (9th ed.) Citation

Crystal, David. The Penguin Book of Facts. 2nd ed. Penguin Group, 2008.