@book{78,
	author = {Norušis, M. J. and SPSS Inc.},
	title = {SPSS/PC⁺ for the IBM PC/XT/AT /},
	publisher = {SPSS Inc.,},
	year = {c1986.},
	address = {Chicago, Ill. :},
	note = {On t.p. the registered trademark symbol "TM" is subscript following "SPSS/PC⁺" in the title.}
}