Weikart, D. P. (2000). Early childhood education: Need and opportunity. Unesco, International Institute for Educational Planning.
Citazione stile Chigago Style (17a edizione)Weikart, David P. Early Childhood Education: Need and Opportunity. Paris: Unesco, International Institute for Educational Planning, 2000.
Citatione MLA (8a ed.)Weikart, David P. Early Childhood Education: Need and Opportunity. Unesco, International Institute for Educational Planning, 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.