@book{35386,
	author = {Peñuela Poveda, Ana María and López Quiñones, Inés del Pilar,},
	title = {Un Compromiso, Un Hecho, Un Derecho :},
	publisher = {Universidad de los Llanos; Ecopetrol,},
	year = {2012.},
	address = {Villavicencio :}
}