Enid Blyton. (1956). The Famous Five- Five on a secret trail -15 (2015.). Hodder Children's book.
Chicago-referens (17:e uppl.)Enid Blyton. The Famous Five- Five on a Secret Trail -15. 2015. Hodder Children's book, 1956.
MLA-referens (9:e uppl.)Enid Blyton. The Famous Five- Five on a Secret Trail -15. 2015. Hodder Children's book, 1956.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.