APA Citation

(1994). SPSS 6.1 categories. Chicago, Ill.: SPSS Inc..

Chicago Style Citation

SPSS 6.1 Categories. Chicago, Ill.: SPSS Inc., 1994.

MLA Citation

SPSS 6.1 Categories. Chicago, Ill.: SPSS Inc., 1994.

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