@book{9709,
	author = {Brace, Nicola. and Kemp, Richard.},
	title = {SPSS for psychologists :},
	publisher = {L. Erlbaum Associates,},
	year = {2003.},
	address = {Mahwah, N.J. :},
	edition = {2nd ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0745/2003040785-d.html}
}