@book{228972,
	author = {Patricia María Montoya Rivero},
	title = {Historia Universal Contemporánea, Enfoque por competencias},
	publisher = {McGraw-Hill Interamericana,},
	year = {2012},
	address = {Mexico :},
	edition = {first edition},
	url = {https://resolver.vitalsource.com/9781456207601}
}