@book{6871,
	author = {Navas Dávila, Gerardo.},
	title = {Cambio y desarrollo en Puerto Rico :},
	publisher = {Editorial Universitaria, Universidad de Puerto Rico ,},
	year = {1980.},
	series = {Serie Planificación ; G-2},
	address = {Río Piedras :},
	edition = {1. ed.}
}