@book{15449,
	author = {Mertens, Donna M.},
	title = {Research methods in education and psychology :},
	publisher = {Sage Publications,},
	year = {c1998.},
	address = {Thousand Oaks, Calif. :},
	url = {http://www.loc.gov/catdir/enhancements/fy0655/97004890-d.html}
}