Norusis, M. J. SPSS 6.1: Guide to data analysis. Prentice Hall.
Chicago Style (17th ed.) CitationNorusis, Marija J. SPSS 6.1: Guide to Data Analysis. Englewood Cliffs, New Jersey: Prentice Hall.
MLA (9th ed.) CitationNorusis, Marija J. SPSS 6.1: Guide to Data Analysis. Prentice Hall.
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