@book{125788,
	author = {Darwin, Charles, and Peckham, Morse. and ebrary, Inc.},
	title = {The origin of species},
	publisher = {University of Pennsylvania Press,},
	year = {1959.},
	address = {Philadelphia [Pa.] :},
	note = {With a reproduction of the t.p. of the original ed. published in 1859 under title: On the origin of species by means of natural selection.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10491921}
}