Grellet, F. (1996). Writing for advanced learners of English. N.Y.: Cambridge University Press.
Chicago Style aipamenaGrellet, Francoise. Writing for Advanced Learners of English. N.Y.: Cambridge University Press, 1996.
MLA aipamenaGrellet, Francoise. Writing for Advanced Learners of English. N.Y.: Cambridge University Press, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.