Lester, J. D., & Lester, J. D. (2003). Principles of writing research papers. Longman.
Lua i Stíl Chicago (17ú heag.)Lester, James D., agus James D. Lester. Principles of Writing Research Papers. New York: Longman, 2003.
Lua MLA (9ú heag.)Lester, James D., agus James D. Lester. Principles of Writing Research Papers. Longman, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.