Cita APA (7a ed.)

Nunan, D. (1993). Introducing discourse analysis. Penguin books.

Cita Chicago Style (17a ed.)

Nunan, David. Introducing Discourse Analysis. London: Penguin books, 1993.

Cita MLA (9a ed.)

Nunan, David. Introducing Discourse Analysis. Penguin books, 1993.