@book{71022,
	author = {Fernández Bolívar, Víctor José,},
	title = {Los Principios Matemático-Históricos y la Evolución de la Libertad},
	publisher = {Project Gutenberg,},
	year = {2009},
	address = {Salt Lake City, UT :},
	note = {Release date is 2009-10-04},
	url = {https://www.gutenberg.org/ebooks/30175}
}