@book{11720,
	author = {Shelley, Mary Wollstonecraft,  and Pujals, María Engracia },
	title = {Frankenstein /},
	publisher = {Grupo Anaya, },
	year = {1989},
	series = {Tus libras ;},
	address = {Madrid : },
	edition = {4a. ed. },
	note = {Bibliografía : p. 238}
}