@book{127489,
	author = {Hartley, Ruth Edith},
	title = {Cómo comprender los juegos infantiles},
	publisher = {Ediciones Hormé},
	year = {1984.},
	series = {Biblioteca : Psicología infnatil},
	address = {Buenos Aires},
	edition = {3. ed.},
	note = {Translation of : Understanding Childrens Play.}
}