Crystal, D. (2004). The Penguin book of facts. London, England ; New York, N.Y., USA: Penguin.
シカゴスタイル引用形Crystal, David. The Penguin Book of Facts. London, England ; New York, N.Y., USA: Penguin, 2004.
MLA引用形式Crystal, David. The Penguin Book of Facts. London, England ; New York, N.Y., USA: Penguin, 2004.
警告: この引用は必ずしも正確ではありません.