एपीए उद्धरण

Narlikar, J. V. (1993). Introduction to Cosmology. Cambridge University Press.

शिकागो स्टाइल उद्धरण

Narlikar, Jayant V. Introduction to Cosmology. Cambridge: Cambridge University Press, 1993.

एमएलए उद्धरण

Narlikar, Jayant V. Introduction to Cosmology. Cambridge University Press, 1993.