@book{39727,
	author = {Ovalles Rodríguez, Gustavo Adolfo and Urbina Cárdenas, Jesús Ernesto},
	title = {Abandono y Permanencia :},
	publisher = {Universidad Francisco de Paula Santander,},
	year = {2014.},
	address = {Bogotá D.C, Colombia :},
	edition = {1.},
	note = {Incluye Indice.}
}