@book{255899,
	author = {Ary, Donald. and Ary, Donald.},
	title = {Introduction to research in education /},
	publisher = {Wadsworth Cengage Learning,},
	year = {2014.},
	address = {Belmont, Calif. :},
	edition = {9th ed.},
	note = {Previous ed.: 2010.},
	url = {http://www.loc.gov/catdir/enhancements/fy1406/2012948124-t.html}
}