"Mental Retardation in infancy & childhood [MESH]" . . "Discapacitats mentals" . . "Lernbehinderung." . . "Mental Retardation." . . "Geestelijk gehandicapte kinderen." . . "Children with mental disabilities." . . "Intellectual Disability." . . "Disabled Children." . . . . "The backward child : [being vol. ii of The subnormal school-child]"@en . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "The Backward Child"@en . . . . . . . . . . . . . . . . . . . "The Backward child" . . . "The backward child" . "The backward child"@en . . . "The backward child : (3. ed.)" . . . . . . . . . . . . . . . . . . . . "The backward child [5th ed.]" . . . . . . . . . "The backward child. [With plates.]"@en . . . . . . . . . . . . . . . "First published in 1937."@en . . . . . . . . . . . . "Child." . . "Child Psychology [MESH]" . . "Kind." . . "Enfants Psychologie." . . "Exceptional children." . . "Disabled Children [MESH]" . . . . "Sonderpädagogik." . . "Psychology, Child." . . "Enfants handicapés mentaux." . . "Child Psychology." . . "Infant." . . "Bambini disabili mentali - Psicologia." . . "Niños discapacitados psíquicos." . .