@book{2614,
	author = {Creswell, John W.},
	title = {Research design :},
	publisher = {Sage Publications,},
	year = {c1994.},
	address = {Thousand Oaks, Calif. :},
	url = {http://www.loc.gov/catdir/enhancements/fy0655/94004236-d.html}
}