@book{100710,
	author = {Jackson, George Pullen,},
	title = {Spiritual Folk-Songs of Early America :},
	publisher = {Project Gutenberg,},
	year = {2019},
	address = {Salt Lake City, UT :},
	note = {Release date is 2019-07-10},
	url = {https://www.gutenberg.org/ebooks/59884}
}