एपीए उद्धरण

Papooty, K. (1997). Jyothisastrathile oru ithihasam (Malayalam) (4th ed.). Kerala Sastra Sahitya Parishad.

शिकागो स्टाइल उद्धरण

Papooty, K. Jyothisastrathile Oru Ithihasam (Malayalam). 4th ed. Ernakulam: Kerala Sastra Sahitya Parishad, 1997.

एमएलए उद्धरण

Papooty, K. Jyothisastrathile Oru Ithihasam (Malayalam). 4th ed. Kerala Sastra Sahitya Parishad, 1997.