@book{23832,
	author = {Frankfort-Nachmias, Chava. and Nachmias, David.},
	title = {Research methods in the social sciences :},
	publisher = {Worth Publishers,},
	year = {c2008.},
	address = {New York, NY :},
	edition = {7th ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0809/2007282670-d.html}
}