Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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