@book{2196,
	author = {Jaccard, James. and Becker, Michael A.,},
	title = {Statistics for the behavioral sciences /},
	publisher = {Wadsworth/Thomson Learning,},
	year = {c2002.},
	address = {Belmont, CA:},
	edition = {4th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy1515/2001037638-d.html}
}