Cita APA (7a ed.)

Allison, P. D. (2005). Fixed effects regression methods for longitudinal data: Using SAS. SAS Institute.

Cita Chicago Style (17a ed.)

Allison, Paul David. Fixed Effects Regression Methods for Longitudinal Data: Using SAS. Cary, NC: SAS Institute, 2005.

Cita MLA (8a ed.)

Allison, Paul David. Fixed Effects Regression Methods for Longitudinal Data: Using SAS. SAS Institute, 2005.