@book{62966,
	author = {Stevens, George Alexander,},
	title = {A Lecture On Heads :},
	publisher = {Project Gutenberg,},
	year = {2007},
	address = {Salt Lake City, UT :},
	note = {Release date is 2007-06-12},
	url = {https://www.gutenberg.org/ebooks/21822}
}