@book{113522,
	author = {Gesell, Arnold Lucius},
	title = {El niño de 11 y 12 años},
	publisher = {Ediciones Paidós Ibérica},
	year = {c1985.},
	series = {Paidos Educador},
	address = {Barcelona},
	note = {Translation of: Youth: the years from ten to sixteen.}
}