APA (7th ed.) Zitazioa

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

Chicago Style (17th ed.) Zitazioa

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

MLA (9th ed.) Zitazioa

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