एपीए उद्धरण

Sreedharan, K. (1999). History of Indian space programme (3rd.). Kerala Sastra Sahitya Parishad.

शिकागो स्टाइल उद्धरण

Sreedharan, K. History of Indian Space Programme. 3rd. Kochi: Kerala Sastra Sahitya Parishad, 1999.

एमएलए उद्धरण

Sreedharan, K. History of Indian Space Programme. 3rd. Kerala Sastra Sahitya Parishad, 1999.