@book{16,
	author = {Rea, Louis M. and Parker, Richard A.},
	title = {Designing and conducting survey research :},
	publisher = {Jossey-Bass,},
	year = {c1997.},
	address = {San Francisco :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/bios/wiley042/97007969.html}
}