Enid Blyton. (2018). The Secret Seven, Mystery of the Skull (2018.). Hodder Children's book.
芝加哥风格引文Enid Blyton. The Secret Seven, Mystery of the Skull. 2018. Hodder Children's book, 2018.
MLA引文Enid Blyton. The Secret Seven, Mystery of the Skull. 2018. Hodder Children's book, 2018.
警告：这些引文格式不一定是100％准确.