APA (7th ed.) Zitazioa
Sekar, V. C. (2013). Communication systems. Oxford University Press.
Chicago Style (17th ed.) Zitazioa
Sekar, V. Chandra. Communication Systems. New Delhi: Oxford University Press, 2013.
MLA (9th ed.) Zitazioa
Sekar, V. Chandra. Communication Systems. Oxford University Press, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.