@book{90080,
	author = {Fox, George Henry,},
	title = {A Practical Treatise on Smallpox},
	publisher = {Project Gutenberg,},
	year = {2015},
	address = {Salt Lake City, UT :},
	note = {Release date is 2015-06-20},
	url = {https://www.gutenberg.org/ebooks/49242}
}