@book{203,
	author = {Beltrán LLera, Jesús A. and Pérez Sánchez, Luz F.},
	title = {Educar para el siglo XXI},
	publisher = {Edit. CCS},
	year = {2003},
	address = {Madrid},
	edition = {2a ed},
	note = {Incluye bibliografía}
}