@book{4172,
	author = {Hymes, James L., Jr. },
	title = {Understanding your child / },
	publisher = {Prentice-Hall, },
	year = {c/1952, 1966},
	address = {Englewood Cliffs : },
	edition = {1 ed.},
	note = {Comprendiendo su hijo. El desarrollo de los niños.}
}