@book{71833,
	author = {Hall, A. D.},
	title = {Porto Rico: Its History, Products and Possibilities},
	publisher = {Project Gutenberg,},
	year = {2010},
	address = {Salt Lake City, UT :},
	note = {Release date is 2010-01-16},
	url = {https://www.gutenberg.org/ebooks/30987}
}