Un libro interactivo que presenta el mundo de una forma accesible y f cil de entender para los ni os. Con material educativo dise ado para ni os de diversas edades, este libro abre una ventana a la geograf a y a la diversidad de nuestro mundo. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States...