एपीए उद्धरण

Novikov, I., & Vitaly, K. (1995). Black holes and the Universe. Cambridge University Press.

शिकागो स्टाइल उद्धरण

Novikov, Igor, और Kisin Vitaly. Black Holes and the Universe. Cambridge: Cambridge University Press, 1995.

एमएलए उद्धरण

Novikov, Igor, और Kisin Vitaly. Black Holes and the Universe. Cambridge University Press, 1995.