APA (7th ed.) Citation

Norusis, M. J. (1994). SPSS Professional Statistics 6.1. SPSS.

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

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