@book{77360,
	author = {Darwin, Charles,},
	title = {The Descent of Man and Selection in Relation to Sex, Vol. II (1st Edition)},
	publisher = {Project Gutenberg,},
	year = {2011},
	address = {Salt Lake City, UT :},
	note = {Transcription of 1871 edition.},
	url = {https://www.gutenberg.org/ebooks/36520}
}