Enid Blyton. (1956). The Famous Five- Five on a secret trail -15 (2015.). Hodder Children's book.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEnid Blyton. The Famous Five- Five on a Secret Trail -15. 2015. Hodder Children's book, 1956.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEnid Blyton. The Famous Five- Five on a Secret Trail -15. 2015. Hodder Children's book, 1956.
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