Roberts-Holmes, G. (2005). Doing your early years research project: A step-by-step guide. Paul Chapman.
Lua i Stíl Chicago (17ú heag.)Roberts-Holmes, Guy. Doing Your Early Years Research Project: A Step-by-step Guide. London: Paul Chapman, 2005.
Lua MLA (8ú heag.)Roberts-Holmes, Guy. Doing Your Early Years Research Project: A Step-by-step Guide. Paul Chapman, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.