@book{43743,
	author = {Christiansen, Thomas,},
	title = {The reason why :},
	publisher = {Prensas Universitarias de Zaragoza,},
	year = {[2012]},
	series = {Monografías de historia rural ;},
	address = {Zaragoza, España :},
	note = {Originally presented as the author's thesis (doctoral)--London School of Economic and Political Science, 2001},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/42780/}
}