@book{210943,
	author = {Marks, Robert B.},
	title = {Los orígenes del mundo moderno},
	publisher = {Crítica},
	year = {c2007.},
	series = {Libros de historia},
	address = {Barcelona},
	url = {http://www.loc.gov/catdir/toc/ecip072/2006033132.html}
}