APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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