por Martín, Elena [autor] | Moreno Amparo [autor].
por Bradley, Ben S [autor] | Barrio, Cristina del [traductor] | Moreno, Amparo [traductor] | Bradley, Ben S. Visions of infancy.
por Kamii, Constance [autor] | Moreno, Amparo [traductor] | Martin, Elena [traductor] | Kamii, Constance. Number in preschool and kindergarden.