@book{58924,
	author = {Greef, Guillaume de,},
	title = {Les lois sociologiques},
	publisher = {Project Gutenberg,},
	year = {2006},
	address = {Salt Lake City, UT :},
	note = {Release date is 2006-02-07},
	url = {https://www.gutenberg.org/ebooks/17538}
}