Brown, H. D. (2001). Teaching by principles: An interactive approach to language pedagogy (Second edition.). Longman.
Lua i Stíl Chicago (17ú heag.)Brown, H. Douglas. Teaching by Principles: An Interactive Approach to Language Pedagogy. Second edition. White Plains, NY: Longman, 2001.
Lua MLA (8ú heag.)Brown, H. Douglas. Teaching by Principles: An Interactive Approach to Language Pedagogy. Second edition. Longman, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.