Παραπομπή APA

Johnson, K. (2008). An Introduction to foreign language learning and teaching (2nd ed.). Pearson.

Παραπομπή Chicago Style

Johnson, Keith. An Introduction to Foreign Language Learning and Teaching. 2nd ed. London: Pearson, 2008.

Παραπομπή MLA

Johnson, Keith. An Introduction to Foreign Language Learning and Teaching. 2nd ed. Pearson, 2008.