APA (7th ed.) Citation

Littell, R. C., Stroup, W. W., & Freund, R. J. (2002). SAS for linear models (4th ed.). SAS Institute ; Wiley.

Chicago Style (17th ed.) Citation

Littell, Ramon C., Walter W. Stroup, and Rudolf J. Freund. SAS for Linear Models. 4th ed. Cary, N.C. : [New York]: SAS Institute ; Wiley, 2002.

MLA (9th ed.) Citation

Littell, Ramon C., et al. SAS for Linear Models. 4th ed. SAS Institute ; Wiley, 2002.