Crystal, D. (2010). A little book of language. Yale University Press.
Chicago Style (17th ed.) ZitazioaCrystal, David. A Little Book of Language. New Haven: Yale University Press, 2010.
MLA (9th ed.) ZitazioaCrystal, David. A Little Book of Language. Yale University Press, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.