एपीए उद्धरण

Narlikar, J. V. (1985). From black clouds to black holes. World Scientific.

शिकागो स्टाइल उद्धरण

Narlikar, Jayant V. From Black Clouds to Black Holes. Singpore: World Scientific, 1985.

एमएलए उद्धरण

Narlikar, Jayant V. From Black Clouds to Black Holes. World Scientific, 1985.