Enid Blyton. (1953). The Secret Seven: Go ahead, secret seven. Hodder Children's Book.
芝加哥风格引文Enid Blyton. The Secret Seven: Go Ahead, Secret Seven. Great Britain: Hodder Children's Book, 1953.
MLA引文Enid Blyton. The Secret Seven: Go Ahead, Secret Seven. Hodder Children's Book, 1953.
警告：这些引文格式不一定是100％准确.