APA (7th ed.) Zitazioa
Gibson, C. G. (2003). Elementary Euclidean geometry: An introduction. Cambridge University Press.
Chicago Style (17th ed.) Zitazioa
Gibson, Christopher G. Elementary Euclidean Geometry: An Introduction. Cambridge, UK: Cambridge University Press, 2003.
MLA (9th ed.) Zitazioa
Gibson, Christopher G. Elementary Euclidean Geometry: An Introduction. Cambridge University Press, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.