Παραπομπή APA

Oommen, M. I. (1972). Vidyutchaktiyum apakatangalum. NBS.

Παραπομπή Chicago Style

Oommen, M I. Vidyutchaktiyum Apakatangalum. Kottayam: NBS, 1972.

Παραπομπή MLA

Oommen, M I. Vidyutchaktiyum Apakatangalum. NBS, 1972.