@book{109208,
	author = {Trouvelot, E. L.},
	title = {The Trouvelot astronomical drawings manual},
	publisher = {Project Gutenberg,},
	year = {2022},
	address = {Salt Lake City, UT :},
	note = {Release date is 2022-06-24},
	url = {https://catalog.hathitrust.org/Record/001988202}
}