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by Norusis, Marija J.; SPSS Inc., Inc.
by Spss Inc.
by SPSS Inc. Staff
by Malhotra, Naresh K.; SPSS, SPSS
by Wagner, William E., III; Chambliss, Daniel F.; Spss, Inc.
by SPSS Inc.
by Spss
by SPSS, Inc.
by Leon-Guerrero, Anna; Spss, Inc.
by Spss, Inc.