APA (7th ed.) Zitazioa
ebrary, Inc, & Garvin, P. (2010). The United States government Internet directory. Bernan Press.
Chicago Style (17th ed.) Zitazioa
ebrary, Inc, eta Peggy Garvin. The United States Government Internet Directory. Lanham, MD: Bernan Press, 2010.
MLA (9th ed.) Zitazioa
ebrary, Inc, eta Peggy Garvin. The United States Government Internet Directory. Bernan Press, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.