Norusis, M. J. (1993). SPSS for windows base system user's guide release 6.0. Chicago: SPSS Inc..
Chicago Style CitationNorusis, Marija J. SPSS for Windows Base System User's Guide Release 6.0. Chicago: SPSS Inc., 1993.
MLA CitationNorusis, Marija J. SPSS for Windows Base System User's Guide Release 6.0. Chicago: SPSS Inc., 1993.
Warning: These citations may not always be 100% accurate.