APA (7th ed.) Citation

Crystal. (2003). The PEGUIN book of facts. Penguin Books.

Chicago Style (17th ed.) Citation

Crystal. The PEGUIN Book of Facts. England: Penguin Books, 2003.

MLA (9th ed.) Citation

Crystal. The PEGUIN Book of Facts. Penguin Books, 2003.

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