@book{21838,
	author = {Pérez Galdós, Benito, and Gaona, Maria Eugenia.},
	title = {Trafalgar ;},
	publisher = {Porrúa },
	year = {2002.},
	series = {Sepan cuantos; },
	address = {México },
	edition = {14a ed.},
	note = {Incluye índice; }
}