Cita APA

Crystal, D. 1., & Crystal, D. 1. (2010). A little book of language. New Haven, London: Yale University Press.

Citación estilo Chicago

Crystal, David 1941-, y David 1941- Crystal. A Little Book of Language. New Haven, London: Yale University Press, 2010.

Cita MLA

Crystal, David 1941-, y David 1941- Crystal. A Little Book of Language. New Haven, London: Yale University Press, 2010.