Cita APA (7th ed.)

Nunan, D. (2007). What is this thing called language? Palgrave Macmillan.

Cita Chicago (17th ed.)

Nunan, David. What Is This Thing Called Language? Houndmills, Basingstoke, Hants: Palgrave Macmillan, 2007.

Cita MLA (9th ed.)

Nunan, David. What Is This Thing Called Language? Palgrave Macmillan, 2007.