ebrary, Inc. (2003). Who are these people?: A guide for child care professionals. National Academies.
Chicago-referens (17:e uppl.)ebrary, Inc. Who Are These People?: A Guide for Child Care Professionals. Washington, DC: National Academies, 2003.
MLA-referens (9:e uppl.)ebrary, Inc. Who Are These People?: A Guide for Child Care Professionals. National Academies, 2003.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.