Berry, R. (1986). How to write a research paper (2nd ed.). Pergamon Press.
Lua i Stíl Chicago (17ú heag.)Berry, Ralph. How to Write a Research Paper. 2nd ed. Oxford: Pergamon Press, 1986.
Lua MLA (9ú heag.)Berry, Ralph. How to Write a Research Paper. 2nd ed. Pergamon Press, 1986.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.