Crystal, D. (2004). The Penguin book of facts. London, England ; New York, N.Y., USA: Penguin.
Chicago Style CitationCrystal, David. The Penguin Book of Facts. London, England ; New York, N.Y., USA: Penguin, 2004.
MLA CitationCrystal, David. The Penguin Book of Facts. London, England ; New York, N.Y., USA: Penguin, 2004.
Warning: These citations may not always be 100% accurate.