APA-viite

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

Chicago-tyylinen lähdeviittaus

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

MLA-viite

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