@book{57149,
	author = {Wicksell, Knut,},
	title = {Om utvandringen, dess betydelse och orsaker :},
	publisher = {Project Gutenberg,},
	year = {2005},
	address = {Salt Lake City, UT :},
	note = {Release date is 2005-05-03},
	url = {https://www.gutenberg.org/ebooks/15761}
}