APA (7 वां संस्करण) प्रशस्ति पत्र

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

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

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

एमएलए (8वां संस्करण) प्रशस्ति पत्र

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