@book{49774,
	author = {Brockwell, Maurice W.,},
	title = {Leonardo Da Vinci},
	publisher = {Project Gutenberg,},
	year = {2005},
	address = {Salt Lake City, UT :},
	note = {Release date is 2005-03-01},
	url = {https://www.gutenberg.org/ebooks/7785}
}