@book{22694,
	author = {Beethoven, Ludwing van and Arrau, Claudio},
	title = {Sonatina para piano},
	publisher = {Biblioteca Joaquín García Monge. Sección de Audiovisuales},
	year = {1987},
	series = {Enciclopedia Salvat de los Grandes Compositores},
	address = {Heredia, Costa Rica}
}