Weikart, D. P. (2000). Early childhood education: Need and opportunity. Unesco, International Institute for Educational Planning.
Chicago-referens (17:e uppl.)Weikart, David P. Early Childhood Education: Need and Opportunity. Paris: Unesco, International Institute for Educational Planning, 2000.
MLA-referens (8:e uppl.)Weikart, David P. Early Childhood Education: Need and Opportunity. Unesco, International Institute for Educational Planning, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.