APA (7th ed.) Zitazioa
Coles, P. (2001). Cosmology: A very short introduction. Oxford University Press.
Chicago Style (17th ed.) Zitazioa
Coles, Peter. Cosmology: A Very Short Introduction. Oxford ; New York: Oxford University Press, 2001.
MLA (9th ed.) Zitazioa
Coles, Peter. Cosmology: A Very Short Introduction. Oxford University Press, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.