@book{8710,
	author = {Machado Cartagena, Absalón,},
	title = {Problemas Agrarios Colombianos /},
	publisher = {Siglo Veintiuno,},
	year = {1991.},
	series = {Economía y Demografía},
	address = {Bogotá :},
	edition = {2.}
}