APA (7th ed.) Zitazioa
ebrary, Inc, Watson, R. P., & Dewhirst, R. E. (2010). The roads to Congress 2008. Lexington Books.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, Robert P. Watson, eta Robert E. Dewhirst. The Roads to Congress 2008. Lanham, MD: Lexington Books, 2010.
MLA (9th ed.) Zitazioa
ebrary, Inc, et al. The Roads to Congress 2008. Lexington Books, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.