APA Citation

Crystal, D. (2004). The Penguin book of facts. London, England ; New York, N.Y., USA: Penguin.

Trích dẫn kiểu Chicago

Crystal, David. The Penguin Book of Facts. London, England ; New York, N.Y., USA: Penguin, 2004.

MLA Citation

Crystal, David. The Penguin Book of Facts. London, England ; New York, N.Y., USA: Penguin, 2004.

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