Παραπομπή APA

Ferguson, K. (1996). Prisons of light: Black holes. Cambridge University Press.

Παραπομπή Chicago Style

Ferguson, Kitty. Prisons of Light: Black Holes. Cambridge: Cambridge University Press, 1996.

Παραπομπή MLA

Ferguson, Kitty. Prisons of Light: Black Holes. Cambridge University Press, 1996.