@book{45087,
	author = {Rubin, Jeffrey and Chisnell, Dana},
	title = {Handbook of usability testing :},
	publisher = {Wiley Pub.,},
	year = {c2008},
	address = {Indianapolis, IN :},
	edition = {2nd ed.},
	note = {Includes index},
	url = {http://www.loc.gov/catdir/enhancements/fy0811/2008008485-t.html}
}