@book{73878,
	author = {Spencer, Herbert,},
	title = {Les bases de la morale évolutionniste},
	publisher = {Project Gutenberg,},
	year = {2010},
	address = {Salt Lake City, UT :},
	note = {Release date is 2010-06-30},
	url = {https://www.gutenberg.org/ebooks/33032}
}