Blyton, E. (2015). The Secret Seven: Go Ahead, Secret Seven (1st.). Hodder Children's Books.
Lua i Stíl Chicago (17ú heag.)Blyton, Enid. The Secret Seven: Go Ahead, Secret Seven. 1st. UK: Hodder Children's Books, 2015.
Lua MLA (9ú heag.)Blyton, Enid. The Secret Seven: Go Ahead, Secret Seven. 1st. Hodder Children's Books, 2015.
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