@book{136625,
	author = {Gesell, Arnold Lucius and Gesell, Arnold Lucius},
	title = {El niño de 1 a 5 años :},
	publisher = {Edciones Paidós ,},
	year = {1989.},
	address = {Barcelona :},
	note = {Translation of: The first five years of life . A guide to the study of the preeschool child.}
}