APA (7 वां संस्करण) प्रशस्ति पत्र

Johnson, K. (2005). Expertise in second language learning and teaching. Palgrave Macmillan.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Johnson, Keith. Expertise in Second Language Learning and Teaching. Basingstoke [England] ; New York: Palgrave Macmillan, 2005.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Johnson, Keith. Expertise in Second Language Learning and Teaching. Palgrave Macmillan, 2005.