@book{76067,
	author = {Sumner, Charles, and Billings, Hammatt,},
	title = {White Slavery in the Barbary States},
	publisher = {Project Gutenberg,},
	year = {2011},
	address = {Salt Lake City, UT :},
	note = {Release date is 2011-02-09},
	url = {https://www.gutenberg.org/ebooks/35222}
}