(1988). Prentice Hall Handbook for writers (10th.ed.). Prentice Hall.
Chicago Style aipamenaPrentice Hall Handbook for Writers. 10th.ed. New Jersey: Prentice Hall, 1988.
MLA aipamenaPrentice Hall Handbook for Writers. 10th.ed. Prentice Hall, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.