@book{48324,
	author = {Engels, Friedrich, and Engels, Friedrich,},
	title = {El origen de la familia, de la propiedad privada y del Estado :},
	publisher = {Akal,},
	year = {[2017]},
	series = {Akal/Básica de bolsillo;},
	address = {Tres Cantos, Madrid, España :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/50873/}
}