APA aipamena

Parappurathu. (1979). Akasathile paravakal. NBS.

Chicago Style aipamena

Parappurathu. Akasathile Paravakal. Kottayam: NBS, 1979.

MLA aipamena

Parappurathu. Akasathile Paravakal. NBS, 1979.