APA (7th ed.) Citation

SPSS, Inc. (Chicago, Ill.). (1994). SPSS 6.1 for Windows: Student version. Prentice-Hall.

Chicago Style (17th ed.) Citation

SPSS, Inc. (Chicago, Ill.). SPSS 6.1 for Windows: Student Version. Englewood Cliffs, NJ: Prentice-Hall, 1994.

MLA (9th ed.) Citation

SPSS, Inc. (Chicago, Ill.). SPSS 6.1 for Windows: Student Version. Prentice-Hall, 1994.