@book{9496,
	author = {Green, Samuel B},
	title = {Using SPSS for windows : Analyzing and understanding data.- 2nd ed./ Samuel B Green , Neil J Salkind , Theresa M. Akey},
	publisher = {Upper Saddler River, New Jersey : Prentice Hall, c2000},
	address = {Upper Saddler River, New Jersey : Prentice Hall, c2000}
}