@book{58888,
	author = {Maginnis, Charles Donagh,},
	title = {Pen Drawing: An Illustrated Treatise},
	publisher = {Project Gutenberg,},
	year = {2006},
	address = {Salt Lake City, UT :},
	note = {Release date is 2006-01-12},
	url = {https://www.gutenberg.org/ebooks/17502}
}