@book{23263,
	author = {Ary, Donald. and Jacobs, Lucy Cheser.},
	title = {Introduction for research in education /},
	publisher = {Wadsworth,},
	year = {c2002.},
	address = {Belmont, CA :},
	edition = {6th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy1515/2001033155-b.html}
}