@book{43348,
	author = {Echeverri Echeverri, Rubén Darío and Franco Montoya, Luz Marina},
	title = {Pensamiento Sistémico - Un Enfoque Práctico.},
	publisher = {Alfaomega,},
	year = {2014.},
	address = {Bogotá :},
	edition = {1.},
	note = {Incluye Bibliografía.}
}