Blyton, E. (1942). The O'Sullivan Twins At St. Clare's (75th.). Hodder Children's Books.
芝加哥风格引文Blyton, Enid. The O'Sullivan Twins At St. Clare's. 75th. London: Hodder Children's Books, 1942.
MLA引文Blyton, Enid. The O'Sullivan Twins At St. Clare's. 75th. Hodder Children's Books, 1942.
警告：这些引文格式不一定是100％准确.