APA (7th ed.) Zitazioa
Gelb, I. J. (1963). A study of writing. University of Chicago Press.
Chicago Style (17th ed.) Zitazioa
Gelb, Ignace J. A Study of Writing. Chicago: University of Chicago Press, 1963.
MLA (9th ed.) Zitazioa
Gelb, Ignace J. A Study of Writing. University of Chicago Press, 1963.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.