@book{53953,
	author = {Mertens, Donna M.},
	title = {Research and evaluation in education and psychology :},
	publisher = {Sage Publications,},
	year = {c2005.},
	address = {London :},
	edition = {2nd ed.},
	note = {Include index},
	url = {http://www.loc.gov/catdir/toc/ecip0416/2004007764.html}
}