APA (7th ed.) Zitazioa
(2000). Writing skills for technical students (4th.ed.). Prentice Hall.
Chicago Style (17th ed.) Zitazioa
Writing Skills for Technical Students. 4th.ed. New Jersey: Prentice Hall, 2000.
MLA (9th ed.) Zitazioa
Writing Skills for Technical Students. 4th.ed. Prentice Hall, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.