@book{12221,
	author = {Rodríguez, Ramón de Jesús and Ballestar, Vicenðc},
	title = {Pastel /},
	publisher = {Parramón Ediciones S.A,},
	year = {1998.},
	series = {Ejercicios Parramón},
	address = {España :},
	edition = {4a ed.}
}