Lua APA (7ú heag.)
Petre, M., & Rugg, G. (2010). The unwritten rules of PhD research (2nd ed.). Open University Press.
Lua i Stíl Chicago (17ú heag.)
Petre, Marian, agus Gordon Rugg. The Unwritten Rules of PhD Research. 2nd ed. Maidenhead, England: Open University Press, 2010.
Lua MLA (9ú heag.)
Petre, Marian, agus Gordon Rugg. The Unwritten Rules of PhD Research. 2nd ed. Open University Press, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.