APA (7 वां संस्करण) प्रशस्ति पत्र

Brown, H. D. (2007). Principles of language learning and teaching (5th ed.). Pearson Longman.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Brown, H. Douglas. Principles of Language Learning and Teaching. 5th ed. White Plains, NY: Pearson Longman, 2007.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Brown, H. Douglas. Principles of Language Learning and Teaching. 5th ed. Pearson Longman, 2007.