@book{48131,
	author = {Cardona Salazar, Jhonier and García Morales, Walter Iván.},
	title = {Dinámica migratoria :},
	publisher = {Universidad Libre,},
	year = {2011.},
	address = {Pereira ( Risaralda, Colombia) :},
	edition = {1a edición.}
}