Roberts-Holmes, G. (2005). Doing your early years research project: A step-by-step guide. Paul Chapman.
Chicago-referens (17:e uppl.)Roberts-Holmes, Guy. Doing Your Early Years Research Project: A Step-by-step Guide. London: Paul Chapman, 2005.
MLA-referens (8:e uppl.)Roberts-Holmes, Guy. Doing Your Early Years Research Project: A Step-by-step Guide. Paul Chapman, 2005.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.