title: [The child and his ecosystem. Introduction].
authors.forename: N C
authors.initials: NC
authors.lastname: Ferreira
mesh_terms: D002648:Child; D002657:Child Development; D004463:Ecology; D004493:Education; D005190:Family; D006801:Humans; D007899:Leisure Activities; D008402:Mass Media; D012931:Social Environment
vernacular_title: El niño y su ecosistema. Introdução.