@book{93303,
	author = {Nieves, Juan B.},
	title = {La Anexión de Puerto-Rico a los Estados Unidos de America},
	publisher = {Project Gutenberg,},
	year = {2016},
	address = {Salt Lake City, UT :},
	note = {Release date is 2016-07-01},
	url = {https://www.gutenberg.org/ebooks/52469}
}