@book{65363,
	author = {Walkenbach, John. and ebrary, Inc.},
	title = {Excel 2013 bible},
	publisher = {Wiley,},
	year = {2013.},
	address = {Indianapolis :},
	note = {Includes index.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10658431}
}