@book{255951,
	author = {Howell, David C.},
	title = {Statistical methods for psychology /},
	publisher = {Duxbury/Thomson Learning,},
	year = {c2002.},
	address = {Pacific Grove, CA :},
	edition = {5th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy1515/00066738-b.html}
}