@book{126353,
	author = {Heers, Marie Louise.},
	title = {El mundo contemporáneo (1848-1914)},
	publisher = {EDAF},
	year = {1974.},
	series = {Historia del Mundo},
	address = {Madrid},
	note = {Translation of : Du printemps des peuples a l'affrontement des nations (1848-1914).}
}