Cita APA (7a ed.)

Brown, H. D. (2007). Principles of language learning and teaching (5th ed.). Pearson Longman.

Cita Chicago Style (17a ed.)

Brown, H. Douglas. Principles of Language Learning and Teaching. 5th ed. White Plains, NY: Pearson Longman, 2007.

Cita MLA (8a ed.)

Brown, H. Douglas. Principles of Language Learning and Teaching. 5th ed. Pearson Longman, 2007.