APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (8:e uppl.)

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