Citazione Stile APA (7a Edizione)

Wilkins, D. A. (1974). Second-language learning and teaching. Edward Arnold.

Citazione stile Chigago Style (17a edizione)

Wilkins, D. A. Second-language Learning and Teaching. Londres: Edward Arnold, 1974.

Citatione MLA (9a ed.)

Wilkins, D. A. Second-language Learning and Teaching. Edward Arnold, 1974.