APA (7th ed.) Citation

BLYTON. (2002). Good old Secret Seven. Hodder Choldren's Books.

Chicago Style (17th ed.) Citation

BLYTON. Good Old Secret Seven. London: Hodder Choldren's Books, 2002.

MLA (9th ed.) Citation

BLYTON. Good Old Secret Seven. Hodder Choldren's Books, 2002.

Warning: These citations may not always be 100% accurate.