@book{55652,
	author = {Speed, Harold,},
	title = {The Practice and Science of Drawing},
	publisher = {Project Gutenberg,},
	year = {2004},
	address = {Salt Lake City, UT :},
	note = {Release date is 2004-12-06},
	url = {https://archive.org/details/practicescienceo00speeiala/mode/2up}
}