Cita APA (7a ed.)

Nunan, D. (1999). Second language teaching & learning. Heinle & Heinle.

Cita Chicago Style (17a ed.)

Nunan, David. Second Language Teaching & Learning. New York, Mass.: Heinle & Heinle, 1999.

Cita MLA (8a ed.)

Nunan, David. Second Language Teaching & Learning. Heinle & Heinle, 1999.