@book{87793,
	author = {Gardner, Edmund G., and James, Helen M.},
	title = {The Story of Siena and San Gimignano},
	publisher = {Project Gutenberg,},
	year = {2014},
	series = {Mediæval town series},
	address = {Salt Lake City, UT :},
	note = {Release date is 2014-09-24},
	url = {https://www.gutenberg.org/ebooks/46954}
}