एपीए उद्धरण

Sundareswaran, N. K. (2009). The contribution of Kelallur nilakantha somayaji to astronomy. Publication Division.

शिकागो स्टाइल उद्धरण

Sundareswaran, N. K. The Contribution of Kelallur Nilakantha Somayaji to Astronomy. University of Calicut: Publication Division, 2009.

एमएलए उद्धरण

Sundareswaran, N. K. The Contribution of Kelallur Nilakantha Somayaji to Astronomy. Publication Division, 2009.