@book{11226,
	author = {George, Darren. and Mallery, Paul.},
	title = {SPSS for Windows Step by Step : a simple guide and reference 7.0 update},
	publisher = {Prentice Hall,},
	year = {2010.},
	series = {11th edition.},
	address = {[S.l.] :},
	edition = {11th ed.},
	url = {http://10.10.170.122:8080/browse/book/28955}
}