एपीए उद्धरण

Narlikar,Jayant, & Burbidge,Geoffrey. (2009). Facts and speculations in cosmology. CUP.

शिकागो स्टाइल उद्धरण

Narlikar,Jayant, और Burbidge,Geoffrey. Facts and Speculations in Cosmology. Cambridge: CUP, 2009.

एमएलए उद्धरण

Narlikar,Jayant, और Burbidge,Geoffrey. Facts and Speculations in Cosmology. CUP, 2009.