@book{3591,
	author = {Pardo Merino, Antonio and Ruiz Diaz, Miguel Ángel},
	title = {Análisis de datos con SPSS 13 Base.},
	publisher = {McGraw Hill, },
	year = {2005.},
	address = {Madrid : },
	edition = {1ra.ed.},
	note = {Incluye bibliografía.}
}