@book{143844,
	author = {Nie, Norman H.},
	title = {SPSS: statistical package for the social sciences},
	publisher = {McGraw-Hill, },
	year = {1975.},
	address = {New York :},
	edition = {2nd ed.},
	note = {1st ed. by N. Nie, D. H. Bent, and C. H. Hull.}
}