@book{212385,
	author = {Beskeen, David W.},
	title = {Microsoft Office 2007},
	publisher = {CENGAGE Learning},
	year = {c2009.},
	series = {Serie Libro Visual},
	address = {México},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/toc/fy0803/2008270377.html}
}