@book{48566,
	author = {Bryman, Alan. and Cramer, Duncan,},
	title = {Quantitative data analysis with SPSS release 8 for Windows :},
	publisher = {Routledge,},
	year = {1999.},
	address = {New York :},
	edition = {Rev ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0650/98044332-d.html}
}