@book{36101,
	author = {Wagner, William E.},
	title = {Using SPSS for social statistics and research methods /},
	publisher = {Pine Forge Press,},
	year = {c2007},
	address = {Thousand Oaks, Calif. :},
	url = {http://www.loc.gov/catdir/enhancements/fy0658/2006007208-t.html}
}