@book{231992,
	author = {Olarrea, Antxon,},
	title = {Orígenes del lenguaje y selección natural /},
	publisher = {Equipo Sirius,},
	year = {[2005?].},
	series = {Colección Milenium},
	address = {Madrid :},
	url = {https://www.digitaliapublishing.com/a/8860/}
}