Halliday, M. A. (1994). An introduction to functional grammar. London: Edward Arnold.
Chicago Style aipamenaHalliday, M. A.K. An Introduction to Functional Grammar. London: Edward Arnold, 1994.
MLA aipamenaHalliday, M. A.K. An Introduction to Functional Grammar. London: Edward Arnold, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.