@book{67856,
	author = {Alvarez, Agustín, and Mota, Arturo E. de la},
	title = {La transformación de las razas en América},
	publisher = {Project Gutenberg,},
	year = {2008},
	address = {Salt Lake City, UT :},
	note = {Release date is 2008-10-18},
	url = {https://www.gutenberg.org/ebooks/26947}
}