"Blyton, E. (2011). "Three Cheers, Secret Seven" (1.). HODDER & STOUGHTON.
Lua i Stíl Chicago (17ú heag.)"Blyton, Enid". "Three Cheers, Secret Seven". 1. HODDER & STOUGHTON, 2011.
Lua MLA (9ú heag.)"Blyton, Enid". "Three Cheers, Secret Seven". 1. HODDER & STOUGHTON, 2011.
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