Cita APA

Norusis, M. J. (1994). SPSS professional statistics 6.1. SPSS Inc.

Citación estilo Chicago

Norusis, Marija J. SPSS Professional Statistics 6.1. Chicago, Ill: SPSS Inc, 1994.

Cita MLA

Norusis, Marija J. SPSS Professional Statistics 6.1. SPSS Inc, 1994.

Warning: These citations may not always be 100% accurate.