APA (7th ed.) Citation

SPSS Inc. (1986). SPSS user's guide (2nd ed.). McGraw Hill.

Chicago Style (17th ed.) Citation

SPSS Inc. SPSS User's Guide. 2nd ed. New York: McGraw Hill, 1986.

MLA (9th ed.) Citation

SPSS Inc. SPSS User's Guide. 2nd ed. McGraw Hill, 1986.