[Letters to mothers; medicosocial experiment based on the study of the psychology of infancy and early childhood].
D002675:Child, Preschool; D006801:Humans; D008603:Mental Health; D009035:Mothers; D011584:Psychology
MENTAL HYGIENE; PSYCHOLOGY
Les lettres aux mères; expérience médicosociale fondée sur l'étude de la psychologie du premier age.