@book{6158,
	author = {Creswell, John W. and Plano Clark, Vicki L.},
	title = {Designing and conducting mixed methods research /},
	publisher = {SAGE Publications,},
	year = {c2007.},
	address = {Thousand Oaks, Calif. :},
	url = {http://www.loc.gov/catdir/toc/ecip0610/2006008436.html}
}