@book{241645,
	author = {Thoreau, Henry David,},
	title = {Walden o la vida en los bosques ; del deber de la desobediencia civil},
	publisher = {Los Libros de la Frontera},
	year = {2004.},
	series = {Papeles de ensayo},
	address = {Barcelona},
	edition = {2. ed.}
}