@book{49437,
	author = {Hudson, W. H.},
	title = {The Naturalist in La Plata},
	publisher = {Project Gutenberg,},
	year = {2005},
	address = {Salt Lake City, UT :},
	note = {Release date is 2005-02-01},
	url = {https://www.gutenberg.org/ebooks/7446}
}