POWELL, S. (1999). Returning to study: A guide for professionals. Open University Press.
Lua i Stíl Chicago (17ú heag.)POWELL, Stuart. Returning to Study: A Guide for Professionals. Open University Press, 1999.
Lua MLA (9ú heag.)POWELL, Stuart. Returning to Study: A Guide for Professionals. Open University Press, 1999.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.