@book{173959,
	author = {Halvorson, Michael and Rodríguez Vega, Jorge, tr.},
	title = {Aprenda Microsoft Visual Basic 6.0 ya  /},
	publisher = { McGraw-Hill,},
	year = {1999},
	address = {México  :},
	note = {Título original: Microsoft Visual Basic 6.0 Professional step by step}
}