Citazione Stile APA (7a Edizione)

Johnson, K. (2017). An introduction to foreign language learning and teaching (Third Edition.). Routledge.

Citazione stile Chigago Style (17a edizione)

Johnson, Keith. An Introduction to Foreign Language Learning and Teaching. Third Edition. Milton Park, Abingdon, Oxon: Routledge, 2017.

Citatione MLA (9a ed.)

Johnson, Keith. An Introduction to Foreign Language Learning and Teaching. Third Edition. Routledge, 2017.