APA (7th ed.) Citation

SPSS, Inc. (Chicago, Ill.). (1997). SPSS base 7.5 syntax reference guide.

Chicago Style (17th ed.) Citation

SPSS, Inc. (Chicago, Ill.). SPSS Base 7.5 Syntax Reference Guide. Chicago, Ill, 1997.

MLA (9th ed.) Citation

SPSS, Inc. (Chicago, Ill.). SPSS Base 7.5 Syntax Reference Guide. 1997.

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