National Society for the Study of Education. Committee on Early Childhood Education & Gordon, I. J. (1972). Early childhood education. NSSE; distributed by the University of Chicago Press.
Citazione stile Chigago Style (17a edizione)National Society for the Study of Education. Committee on Early Childhood Education e Ira J. Gordon. Early Childhood Education. Chicago: NSSE; distributed by the University of Chicago Press, 1972.
Citatione MLA (8a ed.)National Society for the Study of Education. Committee on Early Childhood Education e Ira J. Gordon. Early Childhood Education. NSSE; distributed by the University of Chicago Press, 1972.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.