@book{81037,
	author = {Seymour, Alfred},
	title = {Practical Lithography},
	publisher = {Project Gutenberg,},
	year = {2012},
	address = {Salt Lake City, UT :},
	note = {Release date is 2012-07-10},
	url = {https://www.gutenberg.org/ebooks/40198}
}