@book{241417,
	author = {Williams, William Klapp,},
	title = {The Communes of Lombardy from the VI. to the X. Century :},
	publisher = {Project Gutenberg,},
	year = {2004},
	note = {Communes of Lombardy from the Sixth to the Tenth Century},
	url = {http://www.gutenberg.org/ebooks/12162}
}