Citazione Stile APA (7a Edizione)

Johnson, K. (2001). An introduction to foreign language learning and teaching. Longman.

Citazione stile Chigago Style (17a edizione)

Johnson, Keith. An Introduction to Foreign Language Learning and Teaching. Harlow, Essex, London ; New York: Longman, 2001.

Citatione MLA (8a ed.)

Johnson, Keith. An Introduction to Foreign Language Learning and Teaching. Longman, 2001.