Devadas, K. (1966). Urumbukalude athbhuthalokathil. Vidhyarthimithram.
Chicago Edition CitationDevadas, Kumarapuram. Urumbukalude Athbhuthalokathil. Kottayam: Vidhyarthimithram, 1966.
Cita MLADevadas, Kumarapuram. Urumbukalude Athbhuthalokathil. Vidhyarthimithram, 1966.
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