APA (7th ed.) Citation

Freund, R. J., & Littell, R. C. (1995). SAS system for regression (2. ed., 4. printing.). SAS Inst.

Chicago Style (17th ed.) Citation

Freund, Rudolf Jakob, and Ramon C. Littell. SAS System for Regression. 2. ed., 4. printing. Cary, NC: SAS Inst, 1995.

MLA (9th ed.) Citation

Freund, Rudolf Jakob, and Ramon C. Littell. SAS System for Regression. 2. ed., 4. printing. SAS Inst, 1995.