APA (7th ed.) Citation

(1999). SPSS base 9.0: Brief guide. Prentice-Hall.

Chicago Style (17th ed.) Citation

SPSS Base 9.0: Brief Guide. Upper Saddle River, N.J: Prentice-Hall, 1999.

MLA (9th ed.) Citation

SPSS Base 9.0: Brief Guide. Prentice-Hall, 1999.