@book{205386,
	author = {Rojas Risco, Demóstenes.},
	title = {Redacción comercial estructurada},
	publisher = {McGraw-Hill},
	year = {2005.},
	series = {Nueva serie educación comercial.},
	address = {Santafé de Bogota},
	edition = {5a.. ed.}
}