@book{4819,
	author = {Graig, Grace J. and  Don Baucum},
	title = {Desarrollo psicológico /},
	publisher = {Pearson  Educación  S.A., },
	year = {2009.},
	address = {México, D.F. :},
	edition = {Novena edición. },
	note = {Incluye índice.}
}