@book{30609,
	author = {Ulrich, Laurie Ann. and Scott Peña, Patricia,},
	title = {Microsoft excel sin problemas /},
	publisher = {McGraw Hill Interamericana,},
	year = {2001.},
	address = {Madrid :},
	note = {Traducción de la obra en ingles: Troubleshooting microsoft excel spreadsheets.}
}