@book{514,
	author = {Castejón Montijano, Rafael and Pérez Zabaleta, Amelia / Martinez Merino, Juan Luis.},
	title = {Práctica de Economía},
	publisher = {Universidad Nacional de educación a Distancia;},
	year = {1996.},
	address = {Madrid, España:},
	edition = {1a ed.}
}