@book{29099,
	author = {Chavarro Cadena, Jorge Enrique, and Cortés Guzmán, Guillermo,},
	title = {Retención en la fuente 2011 :},
	publisher = {Grupo Editorial Nueva Legislación Ltda.,},
	year = {2011.},
	address = {Bogotá, D.C. :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/13602/}
}