@book{99994,
	author = {Cust, Robert H. Hobart},
	title = {The Pavement Masters of Siena (1369-1562)},
	publisher = {Project Gutenberg,},
	year = {2019},
	series = {Handbooks of the great craftsmen},
	address = {Salt Lake City, UT :},
	note = {Release date is 2019-03-31},
	url = {https://www.gutenberg.org/ebooks/59168}
}