@book{4442,
	author = {Tobón, Ruben Dario and Tobón, Javier Alonso},
	title = {Estudio de factibilidad :},
	publisher = {Ruben Dario Tobón, Javier Alonso Tobón,},
	year = {1984.},
	address = {Medellin :},
	note = {Tesis : (Tecnico Administrativo, Mercadeo)-- Serna, Medellin, 1984}
}