(Imagen de Learning to think : consisting of easy and entertaining lessons, designed to interest and assist in the first unfolding of the reflective and reasoning powers of children, de Jacob Abbott (1803-1879). Grabado de Lossing & Barritt.)
(Imagen de Learning to think : consisting of easy and entertaining lessons, designed to interest and assist in the first unfolding of the reflective and reasoning powers of children, de Jacob Abbott (1803-1879). Grabado de Lossing & Barritt.)
