APA (7 वां संस्करण) प्रशस्ति पत्र

Brown, H. D., & Lee, H. (2015). Teaching by principles: An interactive approach to language pedagogy (Fourth edition.). Pearson Education.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Brown, H. Douglas, और Heekyeong Lee. Teaching by Principles: An Interactive Approach to Language Pedagogy. Fourth edition. White Plains, NY: Pearson Education, 2015.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Brown, H. Douglas, और Heekyeong Lee. Teaching by Principles: An Interactive Approach to Language Pedagogy. Fourth edition. Pearson Education, 2015.