Greenbaum, S. (1988). Good english and the grammarian. Longman.
Chicago Style (17th ed.) ZitazioaGreenbaum, Sidney. Good English and the Grammarian. London, New York: Longman, 1988.
MLA (9th ed.) ZitazioaGreenbaum, Sidney. Good English and the Grammarian. Longman, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.