@book{224369,
	author = {Hobsbawm, Eric John Ernest,},
	title = {La era del capital, 1848-1875},
	publisher = {Crítica},
	year = {2011.},
	series = {Libros de historia},
	address = {Barcelona},
	note = {Originally published: London : Weidenfeld & Nicolson, 1962.},
	url = {http://www.loc.gov/catdir/description/random048/96007766.html}
}