एपीए उद्धरण

Narlikar, J. V. (2012). From black clouds to black holes (3rd ed.). World Scientific.

शिकागो स्टाइल उद्धरण

Narlikar, Jayant Vishnu. From Black Clouds to Black Holes. 3rd ed. Singapore: World Scientific, 2012.

एमएलए उद्धरण

Narlikar, Jayant Vishnu. From Black Clouds to Black Holes. 3rd ed. World Scientific, 2012.