@book{23,
	author = {Henry, Gary T.},
	title = {Graphing data :},
	publisher = {Sage Publications,},
	year = {c1995.},
	series = {Applied social research methods series ;},
	address = {Thousand Oaks, Calif. :},
	url = {http://www.loc.gov/catdir/enhancements/fy0655/94026841-d.html}
}