@book{5939,
	author = {Darwin, Charles, and Burrow, J. W.},
	title = {The origin of species by means of natural selection, or, The preservation of favoured races in the struggle for life /},
	publisher = {Penguin Books,},
	year = {1982.},
	series = {Penguin English library},
	address = {Harmondsworth, Middlesex, England :}
}