APA aipamena

Parappurathu. (1979). Aakaasathile paravakal.

Chicago Style aipamena

Parappurathu. Aakaasathile Paravakal. Kottayam, SPCS, 1979.

MLA aipamena

Parappurathu. Aakaasathile Paravakal. 1979.