APA (7th ed.) Citation

Freund, R. J., & Littell, R. C. (2000). SAS System for regression (3rd ed.). SAS Institute.

Chicago Style (17th ed.) Citation

Freund, Rudolf J., and Ramon C. Littell. SAS System for Regression. 3rd ed. Cary, N.C.: SAS Institute, 2000.

MLA (9th ed.) Citation

Freund, Rudolf J., and Ramon C. Littell. SAS System for Regression. 3rd ed. SAS Institute, 2000.