@book{273248,
	author = {Barona Betancourt, Ricardo,},
	title = {Constitución y derecho laboral :},
	publisher = {Universidad Externado de Colombia,},
	year = {[2018]},
	address = {Bogotá :},
	edition = {Primera edición.},
	url = {https://www.digitaliapublishing.com/a/111522/}
}