@book{7087,
	author = {Sapsford, Roger.},
	title = {Data collection and analysis /},
	publisher = {Sage in association with Open University,},
	year = {Thousand Oaks, Calif. :},
	address = {London ;},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0656/96069873-d.html}
}