Enid Blyton. (1943). The Mystery of the strange messages. Hodder Children's Book.
Čikaški stil citiranja (17. izdanje)Enid Blyton. The Mystery of the Strange Messages. Great Britain: Hodder Children's Book, 1943.
MLA način citiranja (9. izdanje)Enid Blyton. The Mystery of the Strange Messages. Hodder Children's Book, 1943.
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